Massive optimizations with up to 400% speed increase.
Also fixed a few known bugs, such as speeding up
showBones (which is for debugging only) and allowing
multiple instances of the same image.

Signed-off-by: SammyJoeOSborne <slopps@gmail.com>
Merge branch 'master' of https://github.com/SammyJoeOsborne/SpriterMC.git

Signed-off-by: SammyJoeOSborne <slopps@gmail.com>