[rata] Demonstration of basic movement
[phys] Add Walking class, for walking with friction
[rata] Make Rata Walking
[phys] Remove Actor, rename some things
[phys] set userData on b2Bodies
[phys] Add collision behavior capability
[phys] Make collision rules better.
[core] Don't call stop right after init
[phys] Add ground collision rule
[phys] Add end behavior for ground rule
[phys] Object::force, instantiace HCB fro Object*
[rata] Some movement logic for main character
[haccable] Fix polymorphics always advertising id
[hacc] Indentation support.