Imports of package sprite

PathSynopsis
github.com/fyne-io/mobile/event/sizePackage size defines an event for the dimensions, physical resolution and orientation of the app's window.
github.com/fyne-io/mobile/exp/f32Package f32 implements some linear algebra and GL helpers for float32s.
github.com/fyne-io/mobile/exp/sprite/clockPackage clock provides a clock and time functions for a sprite engine.
imagePackage image implements a basic 2-D image library.
image/drawPackage draw provides image composition functions.