ClimbHome: Change misleading Seed assignment to nil value This was "Seed = ClimbHome", but ClimbHome was a nil value. This code still worked as the engine interpreted the nil value as empty string. But it can be very misleading. This changeset makes the Seed assignment more explicit by assigning the empty string directly. The compability has been tested.

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.