Log Message:
Add games/iortcw.

Return to Castle Wolfenstein is a World War II-based first person shooter
with occult themes, developed by Gray Matter Interactive and released in
2001.

iortcw merges features and fixes from the ioquake3 version of the id Tech
3 game engine into the open source release of Return to Castle Wolfenstein.

A copy of the Return to Castle Wolfenstein data files is required to play
iortcw.