Usage: VSIF2VCD "game directory"
Game directory is where gameinfo.txt is located. It must include:
- scenes/scenes.image
- maplist.txt - a text file listing all maps in the game, with Windows line separator.
- maps/<map name>.bsp or maps/<map name>_l_0.lmp - for each map in maplist.txt.
More info: https://developer.valvesoftware.com/wiki/VSIF2VCD
