New File: engine

This file supposed to contain all stuff thats related to the pure engine
part. I intent to do this part in another thread as the graphics one
lets see.
Fixes a lot and uses engine.getTick

So engine is now already in use
Adds loading of animations and some test

If started the program should open a window and show an archer shooting
his arrow.
Fixes some error and finally hotspot support!

Hotspot is DRS-Speak my version is offset. So yes the animations should
now be steady no more arbitrary movement of the icons.
Do This frkn hell!