* Split DCC and decode direction on demand
* Clean up
* More cleanup
* Make dc6 animation it's own type
* Make base animation private
* Also decode DC6 directions on demand
* adding comments to d2interface for linter
* moved d2render renderer interfaces and types into d2interface
* fixed most lint errors for monstats loader
* decouple bitmuncher to interface
* Take directions in the range of 0-63
* Shift direction handling in animation further back
* Don't need to get the DCC direction here.
Because it was added to animation.
* Check direction is within range
