Rename the misleadingly-named AmmoSchemeModel to GameSchemeModel
AmmoSchemeModel was a misleading name, this class was actually used only for game schemes.
Directory for automated tests to test the engine.
Run `ctest` in the root directory of this repository to run all tests.
Run `ctest -R <test name>` to run only the test with the given name.
This requires you to have CMake.