New output:
$ ./rwgame --help
I [Game] Build: 815c63cf
Generic options:
-c [ --config ] PATH Path of configuration file
--help Show this help message
Window options:
-w [ --width ] WIDTH Game resolution width in pixel
-h [ --height ] HEIGHT Game resolution height in pixel
-f [ --fullscreen ] Enable fullscreen mode
Game options:
-n [ --newgame ] Directly start a new game
-l [ --load ] PATH Load save file
Developer options:
-t [ --test ] Starts a new game in a test location
-b [ --benchmark ] PATH Run benchmark from file
This (slightly more complicated implementation) allows us,
once a configuration menu has been implemented,
to store the current/new configuration to a INI file.
The definitions of the parameters in rwgame/GameConfig.cpp
is limited to one location.
