TorusZone: Add limiter for destination node

TorusZone: Add limiter for destination node

Uniform the behavior of limiters for clusters: Torus, Dragonfly and
Fat-tree.

Limiters are added in source, destination and middle nodes.
Example: Route from A to C, passing through B (A -> B -> C)
A-> limiter(A) -> link(A-B) -> limiter(B) -> link(B-C) -> limiter(C) ->
C

Adjust test timing because of the new limiter. Also, fix flatifier test,
adding new limiter link at destination.