get-gamedir: add script to get the gamedir for when no Game link exists
get-gamedir: add script to get the gamedir for when no Game link exists

Signed-off-by: Christopher Larson <151ee9d8882c48b2c49fd3831d428f4779cb63b5@gmail.com>

kergoth/mac-game-tools,kergoth/mac-game-tools,kergoth/mac-game-tools