Generate <classname>.cfg/userconfig.cfg files at runtime if they don't exist

 * Closes #87 in conjunction with fortressforever/fortressforever-scripts#3
This whole loop could do with a bit more readability help. Hungarian prefixes hurt when it gets to szBlah and we have a buf(0,0,false) (i have no idea what those zeros are, or what the false means). we have a variable called "f", and a couple of magic strings "MOD" and "rb".