Initial implementation of outerProduct, transpose,
determinant and inverse. This is for const objects
only. The dynamic implementation will follow. Note
that the 4x4 determinant and inverse is not optimal
(some multiplications are repeated), and will have
to be implemented properly for the dynamic case.

Change-Id: If3b38d8cfe5d2d49835ae3823ceda10e286dd9b9
Reviewed-on: https://swiftshader-review.googlesource.com/3282Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>