fix(compiler): Fix topology for adjacent ons [LNG-257]

[InversionSpaces]

• Update topology: while computing pathAfter, find next ForceExecModel and generate exit to relay if its pathOn does not match our afterOn (it means that more hops will be done to reach it.
• Add unit and integration tests

[linear]

LNG-257 Incorrect topology with adjacent `on`s

aqua:

func rem(x: i32) -> i32:
    <- x % 2

func test(a: i32) -> []i32:
    result: *i32

    on HOST_PEER_ID:
        result <- rem(a + 1)
        on "worker" via "host":
            result <- rem(a + 2)
        on INIT_PEER_ID via HOST_PEER_ID:
            result <- rem(a + 3)
        
    <- result

bair:

try:
    -relay- <- call %init_peer_id% ("getDataSrv", "-relay-") []
    -a-arg- <- call %init_peer_id% ("getDataSrv", "a") []
    new $result:
        try:
            add <- call -relay- ("math", "add") [-a-arg-, 1]
            rem-0 <- call -relay- ("math", "rem") [add, 2]
            ap rem-0 $result
            try:
                new $-ephemeral-stream-:
                    new #-ephemeral-canon-:
                        canon "host" $-ephemeral-stream- #-ephemeral-canon-
                add-0 <- call "worker" ("math", "add") [-a-arg-, 2]
                rem-1 <- call "worker" ("math", "rem") [add-0, 2]
                ap rem-1 $result
                new $-ephemeral-stream-:
                    new #-ephemeral-canon-:
                        canon "host" $-ephemeral-stream- #-ephemeral-canon-
            catch:
                new $-ephemeral-stream-:
                    new #-ephemeral-canon-:
                        canon "host" $-ephemeral-stream- #-ephemeral-canon-
                new $-ephemeral-stream-:
                    new #-ephemeral-canon-:
                        canon -relay- $-ephemeral-stream- #-ephemeral-canon-
                fail :error:
            try:
                ;; No hop to -relay- here
                add-1 <- call %init_peer_id% ("math", "add") [-a-arg-, 3]
                rem-2 <- call %init_peer_id% ("math", "rem") [add-1, 2]
                ap rem-2 $result
            catch:
                fail :error:
        catch:
            fail :error:
        canon %init_peer_id% $result #-result-fix-0
        ap #-result-fix-0 -result-flat-0
    call %init_peer_id% ("callbackSrv", "response") [-result-flat-0]
catch:
    call %init_peer_id% ("errorHandlingSrv", "error") [:error:, 0]

No hop to -relay- is generated