Modified CMake config file to work with Windows better:
-Allow users to specify library directories, which will enable CMake to automatically search for relevant libraries. These were not necessary in Linux as the paths are already configured when you install the supporting libraries.
-Reordered SFML library linking order as the previous order had some problems linking with MinGW32
-Added definitions for MSVC so that it could compile properly
-FindRocket.cmake was updated to look in library directory specified in the modified CMake config