Changelog for spatial-math-0.2.3.0

0.2.0 - convert to using `linear` V3, M33, Quaternion types - doctests - fix long unknown bug: rotateXyzAbout{X,Y,Z} was rotating opposite direction from intended 0.2.1.1 - Serialize a => Serialize (Euler a) 0.2.1.2 - Binary a => Binary (Euler a) 0.2.2 - add Ord instances