Added in more cheats

Cheat - Result
Hello rich people - Gives the player 100 coins
Greendale is where I belong - Gives the player the greendale key
Use respect - Gives the player all the weapons
This is more complex - Gives the player all the materials
Added Arg Cheat, Added health cheat

seacrest hulk - fills health

New arg is -h, --cheat
Usage is --cheat=cheat1,cheat2
Be warned some cheats require a level to be selected, as the player must
of already been created. :D
Added in missing materials/weapons

Forgot a few things :)
Fixed Materials issue

Quite odd.
Added in an all arg, removed lost dvd
Merge pull request #1240 from Nicko21/MoreCheats

Added in more cheats and activate all cheats via command line.