add skew symmetric matrix adapter

Submitted by Michael Norel

Assigned to Nobody

It is often required skew symmetric adapter for Vector3.

The main reason:

Use math notation, without loose of performance of skew matrix (for elements that don't require calculations).
Use knowledge about matrix structure to speedup calculations

a) don't calculate zero elements.

b) use knowledge about difference of elements only by signs, that can improve performance.

It can be implemented is similar way that "asDiagonal" do.