[win32] implement CWinEventsWin32::MessagePush
[win32] add defines for GID_ROTATE_ANGLE_TO_ARGUMENT and GID_ROTATE_ANGLE_FROM_ARGUMENT
[win32] use generic touch input (adds swipe, rotate and zoom gestures)
Merge pull request #2524 from Montellese/touch_input_win32

[win32] improved touch input/gesture handling