QIOSInputContext: implement isAnimating

Change-Id: Ia85a448b6c49889aab362cdd98de2cb475bc8eec

Conflicts:
	src/plugins/platforms/ios/qiosinputcontext.h
	src/plugins/platforms/ios/qiosinputcontext.mm
iOS: Implement support for native menus

Change-Id: I2c7278697499aa046ac7b1240b7bc713ad1fc709
QPlatformMenu: add OptionMenu and ActionMenu to MenuType

Change-Id: I106efe995287df469f42bec51a0344098b05b8e2
QIOSMenu: use UIActionSheet for actions menu

Change-Id: Ibc4dc3529a387ceffdd0178a661fc76c1a9f089f