android: add missing graphics, only placeholders tho..

Refactored TTexture to allow encoding sprite(s) at an arbitrary location within a (possibly shared) physical texture. The original variant only allowed encoding a sprite at the bottomleft of a larger physical texture to use NPOT sprites on POT only supporting systems.

Learn hask^Wpascal, dudes!

AI can't use cWindSpeedf since it now does a smooth transition

oops

Dammit Xeli