Inconsistent Design in Matrix Casting

[lucasviana0101]

Currently, the matrix cast syntax in Odin represents 2 diferent operations. This does a resizing (I don't know the mathematical terminology for this) when the matrices are square and proceeds otherwise when they have the same number of elements. In that sense, I think this is a bit inconsistent and can lead to confusion.

I think the cast syntax should represent only 1 operation for all cases.