Added Fast Platform Switch plugin to gitignore.
Added Fast Platform Switch plugin to gitignore.

cedw032/MarkerMetro.Unity.WinShared,hungweng/MarkerMetro.Unity.WinShared,Kezeali/MarkerMetro.Unity.WinShared,MarkerMetro/MarkerMetro.Unity.WinShared,hungweng/MarkerMetro.Unity.WinShared