Example apps: accumulate mouse wheel to accodomate for slow framerate.

DirectX11 example: further tweaks/massaging (-15 lines). Syncing example.

Tab->Spaces :( visual studio can't even be trusted for that, oh thanks.

DirectX11 example: closing all handler/resources in Cleanup.

Removed Microsoft IME handler in examples, too confusing. Moved to imgui.cpp instruction block.

Tab->Spaces :(

Added DirectX11 example application (code is too long!)