Bevy 0.13

[Plonq]

• Updates code to use new APIs
• Removes bevy_easings (no longer needed)
• Fixes the zoom controls in keyboard_controls example fixed in master
• Had to add bevy_render feature to Bevy dep (non-dev) to fix cargo check errors
• Had to add render feature to bevy_egui dev (dev) to get egui examples to work

TODO

• Update egui examples

Blocked on:

• Bevy 0.13 vladbat00/bevy_egui#236