Move reading motion C3D files into core
Moved finding the static trial to core
Moved finding the list of horses to core
Cleaned up imports
Moved getPoint into core
Moved limb, footfall and contact interval to core
Moved detection of contact intervals to core
Moved hoof motion point extraction to core
Moved hoof point extraction to core
HoofUtils -> PlateUtils, and some class rearrangement
Import cleanup