* Vec3d fully mapped; Polar2d identified
* s/coerce/fromPolar/g
* Vec3i fully mapped
* BlockPos fully mapped
also demapped a method in Vec3i that may cause issues
(I suspect Enigma has a bug)
* review round 1
closes#87
* Vec3i s/ORIGIN/ZERO/g
* dammit when will you all take a linear algebra course