New Features or Improvements:

• identiy helper for arrays (matrix/quaternion). This helpers will make each item of array identity matrix/quaternion.
• define math constants in cglm header ( @hartenfels ). Now cglm does not depends on platform specific math constants

Bugfixes:

• avx: replace binary constants with hex. Binary constants are GCC extensions ( thanks to @jonathanplatzer )
• avx: fix glm_mul_avx().