Makes indies, inteq and SRM use combustion thrusters instead of plasm…

…as. (#4080)

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## About The Pull Request
Alongside replacing the thrusters I also:
- **Kilo, Mudskipper, Talos, Elder** - replaced plasma canisters with
fuel canisters.
- **Riggs, Colossus** - replaced plasma pressure tanks with fuel
canisters (~~as for Riggs- I couldn't really find the room to add fuel
mixers, though it should get them I think - will think a bit more about
it~~ yeah I dunno)
- **Shetland** - I went a little overboard and made the TEG run on a
hydrogen/oxygen mix, from which the thrusters feed. Should work about
the same though. I hope so anyways.

Also rotates the AACs on all of the above cuz idk, I'm touching them
already, might as well do it.
Also does like really minor Kilo fixes that were annoying me for a
while. (removes a wall decal, rotates beds)

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## Why It's Good For The Game
I've been told by @Apogee-dev that plasmas should be only used on NT
ships. This fixes that.

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worth adding. -->

## Changelog

:cl:
tweak: Kilo, Mudskipper, Riggs, Shetland, Colossus, Talos and Elder now
use combustion thrusters instead of plasma thrusters.
tweak: Shetland's TEG now runs on hydrogen instead of plasma.
fix: Rotated the AACs on all of the above ships.
/:cl:

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_maps/shuttles/independent/independent_kilo.dmm

@@ -6,25 +6,25 @@
 /turf/closed/wall/r_wall,
 /area/ship/cargo)
 "ak" = (
-/obj/machinery/power/shuttle/engine/fueled/plasma,
+/obj/machinery/power/shuttle/engine/fire,
 /turf/open/floor/engine/hull,
 /area/ship/engineering)
 "am" = (
 /obj/machinery/autolathe,
 /turf/open/floor/plasteel/patterned/grid,
 /area/ship/cargo)
 "ar" = (
-/obj/machinery/atmospherics/components/unary/shuttle/heater,
+/obj/machinery/atmospherics/components/unary/shuttle/fire_heater,
 /obj/effect/turf_decal/industrial/warning{
 	dir = 4
 	},
+/obj/structure/window/reinforced{
+	dir = 8
+	},
 /obj/machinery/door/poddoor{
 	dir = 4;
 	id = "kilothrusters"
 	},
-/obj/structure/window/reinforced{
-	dir = 8
-	},
 /turf/open/floor/plating,
 /area/ship/engineering)
 "av" = (
@@ -336,7 +336,7 @@
 /turf/open/floor/plating,
 /area/ship/engineering)
 "cb" = (
-/obj/machinery/portable_atmospherics/canister/toxins,
+/obj/machinery/portable_atmospherics/canister/fuel,
 /obj/effect/turf_decal/box,
 /obj/effect/decal/cleanable/dirt/dust,
 /turf/open/floor/plasteel/tech,
@@ -479,9 +479,7 @@
 /obj/structure/chair/handrail{
 	dir = 1
 	},
-/obj/machinery/advanced_airlock_controller{
-	pixel_y = -21
-	},
+/obj/machinery/advanced_airlock_controller/directional/south,
 /obj/machinery/power/apc/auto_name/directional/west,
 /obj/structure/cable/pink{
 	icon_state = "0-9"
@@ -658,10 +656,6 @@
 	},
 /turf/open/floor/plating,
 /area/ship/engineering)
-"fu" = (
-/obj/effect/turf_decal/corner/opaque/black/mono,
-/turf/closed/wall/r_wall/yesdiag,
-/area/ship/cargo)
 "fv" = (
 /obj/structure/cable/cyan{
 	icon_state = "1-10"
@@ -928,8 +922,12 @@
 /turf/open/floor/plasteel/tech/grid,
 /area/ship/cargo)
 "mz" = (
-/obj/structure/bed,
-/obj/effect/spawner/random/bedsheet,
+/obj/structure/bed{
+	dir = 4
+	},
+/obj/effect/spawner/random/bedsheet{
+	dir = 4
+	},
 /obj/machinery/light_switch{
 	pixel_x = 7;
 	pixel_y = 20
@@ -1828,11 +1826,15 @@
 /turf/open/floor/plating/airless,
 /area/ship/crew)
 "Tn" = (
-/obj/structure/bed,
+/obj/structure/bed{
+	dir = 4
+	},
 /obj/structure/cable/pink{
 	icon_state = "1-6"
 	},
-/obj/effect/spawner/random/bedsheet,
+/obj/effect/spawner/random/bedsheet{
+	dir = 4
+	},
 /obj/machinery/light/directional/west,
 /turf/open/floor/carpet,
 /area/ship/crew/dorm)
@@ -2264,7 +2266,7 @@ Vq
 "}
 (14,1,1) = {"
 aa
-fu
+Nq
 ac
 Ud
 bX

_maps/shuttles/independent/independent_mudskipper.dmm

@@ -476,9 +476,7 @@
 /turf/closed/wall/r_wall/rust,
 /area/ship/hallway/central)
 "lj" = (
-/obj/machinery/power/shuttle/engine/fueled/plasma{
-	dir = 4
-	},
+/obj/machinery/power/shuttle/engine/fire,
 /turf/open/floor/engine/hull,
 /area/ship/engineering/engine)
 "mt" = (
@@ -1109,23 +1107,21 @@
 /obj/machinery/atmospherics/components/unary/portables_connector{
 	dir = 1
 	},
-/obj/machinery/portable_atmospherics/canister/toxins,
+/obj/machinery/portable_atmospherics/canister/fuel,
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "zx" = (
-/obj/machinery/atmospherics/components/unary/shuttle/heater{
-	dir = 4
-	},
+/obj/machinery/atmospherics/components/unary/shuttle/fire_heater,
 /obj/effect/turf_decal/industrial/warning{
 	dir = 4
 	},
+/obj/structure/window/reinforced{
+	dir = 8
+	},
 /obj/machinery/door/poddoor{
 	dir = 4;
 	id = "mudskipper_engine"
 	},
-/obj/structure/window/reinforced{
-	dir = 8
-	},
 /turf/open/floor/plating,
 /area/ship/engineering/engine)
 "zR" = (
@@ -1222,9 +1218,7 @@
 /turf/open/floor/plasteel/tech/grid,
 /area/ship/cargo)
 "BA" = (
-/obj/machinery/advanced_airlock_controller{
-	pixel_y = 24
-	},
+/obj/machinery/advanced_airlock_controller/directional/north,
 /obj/structure/chair/handrail,
 /obj/machinery/atmospherics/components/binary/dp_vent_pump/high_volume/layer4{
 	dir = 8

_maps/shuttles/independent/independent_rigger.dmm

@@ -765,7 +765,7 @@
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering/engine)
 "jy" = (
-/obj/machinery/atmospherics/components/unary/shuttle/heater{
+/obj/machinery/atmospherics/components/unary/shuttle/fire_heater{
 	dir = 1
 	},
 /obj/structure/window/reinforced/spawner,
@@ -1086,9 +1086,7 @@
 /obj/machinery/atmospherics/components/unary/vent_pump/siphon/layer4{
 	dir = 1
 	},
-/obj/machinery/advanced_airlock_controller{
-	pixel_x = -25
-	},
+/obj/machinery/advanced_airlock_controller/directional/west,
 /obj/machinery/atmospherics/pipe/simple/supply/hidden/layer2{
 	dir = 5
 	},
@@ -1734,7 +1732,7 @@
 /turf/open/floor/plating,
 /area/ship/maintenance/fore)
 "wg" = (
-/obj/machinery/atmospherics/components/unary/shuttle/heater{
+/obj/machinery/atmospherics/components/unary/shuttle/fire_heater{
 	dir = 1
 	},
 /obj/structure/window/reinforced/spawner{
@@ -1797,7 +1795,7 @@
 /turf/open/floor/plating,
 /area/ship/engineering/atmospherics)
 "wB" = (
-/obj/machinery/power/shuttle/engine/fueled/plasma{
+/obj/machinery/power/shuttle/engine/fire{
 	dir = 1
 	},
 /turf/open/floor/plating,
@@ -2371,7 +2369,7 @@
 /turf/closed/wall/mineral/plastitanium,
 /area/ship/crew/cryo)
 "Cw" = (
-/obj/machinery/power/shuttle/engine/fueled/plasma{
+/obj/machinery/power/shuttle/engine/fire{
 	dir = 1
 	},
 /turf/open/floor/plating,
@@ -2534,10 +2532,11 @@
 /turf/open/floor/plasteel/tech,
 /area/ship/engineering)
 "Er" = (
-/obj/machinery/atmospherics/components/unary/tank/toxins{
+/obj/effect/turf_decal/industrial/hatch/yellow,
+/obj/machinery/atmospherics/components/unary/portables_connector{
 	dir = 8
 	},
-/obj/effect/turf_decal/industrial/hatch/yellow,
+/obj/machinery/portable_atmospherics/canister/fuel,
 /turf/open/floor/plating,
 /area/ship/maintenance/port)
 "EB" = (
@@ -2910,11 +2909,12 @@
 /turf/open/floor/plasteel/dark,
 /area/ship/crew/cryo)
 "HW" = (
-/obj/machinery/atmospherics/components/unary/tank/toxins{
-	dir = 4
-	},
 /obj/effect/turf_decal/industrial/hatch/yellow,
 /obj/machinery/airalarm/directional/west,
+/obj/machinery/atmospherics/components/unary/portables_connector{
+	dir = 4
+	},
+/obj/machinery/portable_atmospherics/canister/fuel,
 /turf/open/floor/plating,
 /area/ship/maintenance/starboard)
 "Ic" = (