Added beginnings of the Screen class.
Added OpenGL and GLEW to the dependencies.
Removed datacollector subdirectory.
Added the new module directory to the module path.
Added the SmallMath library as a submodule.
Setup CMake for the SmallMath submodule.
Included SmallMath's components in the build.
Added the SmallWidgets library as a submodule.
Moved setting of paths for internal libraries into the intern CMakeLists.txt.  Also setup SmallWidgets in CMake.
Added all of the dependencies into the build.