Fix broken Big Armory mission map
A change in random map generation post-0.9.24 broken the generated Big Armory map.
To fix this, we move over to image map so it never changes.
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.