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

http://baystation12.net/forums/viewtopic.php?f=33&t=10527 for Yankee's
item

http://baystation12.net/forums/viewtopic.php?f=33&t=10768 for supercotton's item

http://baystation12.net/forums/viewtopic.php?f=33&t=10850 for
Cataguette's item

http://baystation12.net/forums/viewtopic.php?f=33&t=10888 for Raptor1628's item
 
http://baystation12.net/forums/viewtopic.php?f=33&t=10894 for AIsforAxolotl's item

http://baystation12.net/forums/viewtopic.php?f=33&t=10949 for Fekkor's item

http://baystation12.net/forums/viewtopic.php?f=33&t=10952 for Mewthsecuritycats update

/obj/item/clothing/tie/stethoscope/fluff/lucystethos 
/obj/item/weapon/storage/belt/medical/fluff/ems
/obj/item/weapon/reagent_containers/food/drinks/flask/vacuumflask/fluff/margaret
/obj/item/weapon/storage/belt/utility/full/fluff/sophie
/obj/item/clothing/head/welding/fluff/kuratas
/obj/item/device/kit/suit/fluff/ronan_harper