Adds 2 approved custom items and update

http://baystation12.net/forums/viewtopic.php?f=33&t=10952 for update
http://baystation12.net/forums/viewtopic.php?f=33&t=10850 for
Cataguette's item
http://baystation12.net/forums/viewtopic.php?f=33&t=10527 for Yankee's
item
Adds 2 approved custom items to code

http://baystation12.net/forums/viewtopic.php?f=33&t=10949
http://baystation12.net/forums/viewtopic.php?f=33&t=10894
Adds Supercotton's welding mask

http://baystation12.net/forums/viewtopic.php?f=33&t=10768
Adds Raptor1628's hazard hardsuit

http://baystation12.net/forums/viewtopic.php?f=33&t=10888
Merge pull request #5833 from Jarcolr/customs

Adds *6* approved custom items and updates a custom item