Adds 2 approved custom items to code

http://baystation12.net/forums/viewtopic.php?f=33&t=10561
http://baystation12.net/forums/viewtopic.php?f=33&t=10517
/obj/item/weapon/lighter/zippo/fluff/janis_godmanis
/obj/item/clothing/ears/fluff/qokkri
Adds mewth's blood red pendant

/obj/item/clothing/tie/fluff/radi
http://baystation12.net/forums/viewtopic.php?f=33&t=10333
Added solaruin's salvage crew hardsuit

http://baystation12.net/forums/viewtopic.php?f=33&t=10564
/obj/item/device/modkit/salvage
Makes the kit compatible with recent changes

Might be too fancy, but it's going to be useful for other kits.
Adds Raptor1628's custom item

http://baystation12.net/forums/viewtopic.php?f=33&t=10609
/obj/item/clothing/under/rank/security/fluff/ronan_harper
Makes the kit very very simple

As simple as it can get, I think.
Adds matthew951's hook mod kit

/obj/item/device/kit/fluff/hook
http://baystation12.net/forums/viewtopic.php?f=33&t=10218
Fixes
Generalized kit

Hopefully this is going to be the last commit.
Merge pull request #5170 from Jarcolr/dev

Adds *6* approved custom items to code