Initial stuff for gameplay
Remove layout for GameActivity and cleanup manifest
Revert support for OpenGL 2
Properly setup rendering based on Ne-He
Initial construction of ball sprite
Showcase sprite moving with Z the same as other 3d objects
Remove unused INDICES
Preliminary work on opponent paddle

Note: Textures must be disabled for non-textured objects
Merge branch 'game' of github.com:tenyoung795/Rotapong