Added, renamed, and changed

Added:
Normalise for v2,v3,v4
Cross and Dot to v4

Renamed:
Functions in v2,v3,v4 to get rid of "Get" prefix

Changed:
Matrix3 and Matrix4 to use a 1D array of floats
Merge branch 'master' of github.com:lordkuragari/terrehbyte-math-library into lordkuragari-master