Adds *5* approved custom items to code

http://baystation12.net/forums/viewtopic.php?f=33&t=11097 for Tudoreleuu's item.
http://baystation12.net/forums/viewtopic.php?f=33&t=11138 for Masterrbc's item.
http://baystation12.net/forums/viewtopic.php?f=33&t=11300 for sabirm's item.
http://baystation12.net/forums/viewtopic.php?f=33&t=11337 for my items.

/obj/item/weapon/storage/secure/briefcase/fluff/uberto_dandolo
/obj/item/clothing/head/feather/fluff/uberto_dandolo
/obj/item/clothing/under/fluff/layla_davieshalabi
/obj/item/clothing/head/soft/sec/corp/fluff/robert_mason
/obj/item/device/paicard/fluff/emilia_scotts