Add tuple deconstructors and conversions to vector types.

[Vassalware]

This PR adds tuple deconstructors (Vector to tuple) and implicit casts (tuple to Vector) to all vector types in OpenToolkit.Mathematics

This will allow for syntax such as:

Vector2 position = (20.0f, 10.0f);
(float x, float y) = position;

[varon]

Wonderful contribution. Thanks @Vassalware !

[varon]

If you're up for it; some basic tests would be great. Just need to prove the roundtrip works as expected for all types.