SFblock iteration 2

My project after the second iteration of development.
If you get an error running the windows version of the game, you might need to install the Microsoft Visual C++ Redistributable here: https://aka.ms/vs/17/release/vc_redist.x64.exe
On Linux, you need to download the AppImage and run the following:

chmod +x sfblock*.AppImage
./sfblock*.AppImage