Extension for large (>3D) vectors and segment and x/y/z/w convenience

[devurandom]

Support for: local m = matrix{1,2,3,4,5,6,...} m:segment(3)[2] -->> matrix{2,3,4} m:y() -->> 2

[marcelvanherk]

Hi,

Hi, this is a very nice library. I do agree it seems logical to replace the 3-vector matrix.scalar and matrix.len with N-vector ones.

Marcel