Very simple and dumb, but we now get touch events and fill the
window with a color (using OpenGL) based on its location.
Change-Id: I6657d2bb013570238bc0fe639f33c59f1ab68872
Copy current native event APIs over; start updating
sample code to use them.
The native activity sample is now much more real, creating
its own worker thread, which now monitors and prints any
incoming input events.
Note that due to the lack of default key handling, pressing
back no longer works! Will be fixed in a bit. This code
also needs to be refactored to put the engine part into
a separate source file.
Change-Id: I2ab3e6d9f840b99ec9a05bbc0d2cd9314beb23d7
