Vector3 swizzle

[nenad-jalsovec]

How about adding swizzle to Vector3 class? It could be in the form of methods like some_vector.xxy(), or better yet similar to glsl swizzle simply some_vector.xxy.

[AThousandShips]

Thank you for your proposal, consolidating in:

• Allow to get multiple coordinates of vectors at the same time (swizzling) #727