New Features or Improvements:
- [major change]: rename glm_vec_ namespace to glm_vec3_
- new minadd, and maxadd functions for vectors
- new negate functions e.g. glm_vec3_negate() , glm_vec4_negate()
Bugfixes:
- fix versor alignment ( thanks to @sinisterchipmunk )
- fix glm_vec3_angle() if cosine is out of range, now it does not return NaN and more stable.
DEPRECATED:
- _flipsign and _inv functions for vectors are deprecated in favor of _negate function.