Added classes for 2- and 3-dimensional vectors.

These are still untested.
Added a WIP matrix class.

Very much a work-in-progress with incomplete methods and some anomalies. May need to rethink the approach and switch from templates to something else, as this kind of concept introduces some severe limitations.
Did some work on Matrix. Minor edits to vectors.

Still WIP, though.
Added a WIP quaternion class.

The equations need to be checked and some functions added.
Changed some methods.

Will need to specialize determinant function to avoid infinite recursion.
Changed whole math library to umath
Added GLEW and FreeGLUT libraries for Windows.
Merge branch 'platfrom'
Merge branch 'MathLib'
Added UMath project to solution
Made filerader more flexible
Merge branch 'master' of https://github.com/Team-Innis/UtH-Engine
updated math library project, and updated some functions
updated math library, made vectors and rectangles use unions
Merge remote-tracking branch 'origin/master' into MathLib
Added & updated some files
Merge remote-tracking branch 'origin/master' into platfrom
Finished shader functions in Graphics