* Move from .c to .h as needed for consistency.
* When missing from both, copy from pull request or wiki.
* When missing entirely, infer functionality from source code.
* invaders face: Initial commit, fully functional so far
* invaders face: silence compiler warning
* invaders face: prevent involuntary restarts when the game is over and save some bytes on flags
---------
Co-authored-by: joeycastillo <joeycastillo@utexas.edu>