Window binding preview will now use the TopMostService to hide below other TopMosts. (...)

Added dependency:
- Plugin WindowManagerExecutor (CK.WindowManager) now requires an ITopMostService.

Trello card: https://trello.com/c/KLx0v8D6/58-lorsqu-on-change-de-clavier-le-nouveau-ne-doit-surement-pas-se-register-au-topmostservice-resultat-lorsqu-on-bind-le-clavier-son