Critical Bugfix:

• fix arm neon build; to negating vectors, NEON gives single intrinsic: https://github.com/recp/cglm/commit/269bdb3dbd07001b4345d8b9c88f235b27d4804a

Improvements:

• io: in release mode, make print functions macro to suppress unused parameter warnings
• build, cmake: use PROJECT_VERSION_** to set so version instead of custom variables