This can't compile because of some form of circular dependency issues
I've tried to make GameWindow have a RenderTarget that it renders too, and can be selected when drawing
Revert "This can't compile because of some form of circular dependency issues"

This reverts commit 5ef5427d1a04365dd0024009d44813fd2158416a.
Added Axis.cpp to MINX visual studio project
Optimized Game::SetRenderTarget
Removed Clear and ClearColor from GameWindow
Added RenderTarget::Clear
Added gitignore for include folder
Removed all cpps from include folder
Updated includes
Merge pull request #51 from GearChicken/feature/renderTargetClears

Feature/render target clears