Rotation System now works much better.

Still a small bug in that bounding boxes seem to slip off the unit a
little. No idea why :/ need to add rotational Graphics, then smooth
movement between them.
Beginnig to add multiple images
Revert "Beginnig to add multiple images"

This reverts commit 329cb6f5c78f58e9991d8bcbc7027372a086abdb.
Multiple Image system in place.

Units now take a list of textures. There will be a method in unit to
sort out which one should be displayed.
Rotation System works, need a Texture Load system