Action Button Update

- Refactors action button backend
   - Action buttons are no longer checked on Life(), items are responsible
     for adding/removing/updating them.
   - Item action buttons are no longer a static action_button_name define,
     items define actions_types, which is a list of paths.
   - Items can now have multiple action buttons.
     - This is handled by new arguments to ui_action_click, the first
       parameter is the user, the second is the path of the action datum
       that was invoked.
 - Refactored how internals function
   - You may now directly switch internals without breaking anything.
   - The internals icon has been updated to be more consistent.
 - Added action buttons for jetpacks
 - Added action buttons for oxygen tanks
 - Uses-based implants now qdel() themselves when they run out of uses.
   This is somewhat a buff to traitor implants, but it's such a minor
   change. The actual reasoning is so that the action buttons are properly
   removed.
 - Fixed a bug with the "Boo" spell which resulted in IsAvailable failing
   for certain ghosts.
 - You can now shift-click on movable HUD elements to reset them to the
   proper position (thank fucking christ)

code/modules/customitems/item_defines.dm

@@ -248,7 +248,7 @@
 	icon_state = "kidosvest"
 	item_state = "kidosvest"
 	ignore_suitadjust = 1
-	action_button_name = null
+	actions_types = list()
 	adjust_flavour = null
 	species_fit = null
 	sprite_sheets = null
@@ -363,7 +363,7 @@
 	icon_state = "fox_jacket"
 	item_state = "fox_jacket"
 	ignore_suitadjust = 1
-	action_button_name = null
+	actions_types = list()
 	adjust_flavour = null
 	species_fit = null
 	sprite_sheets = null
@@ -415,7 +415,7 @@
 	icon_state = "chronx_hood"
 	item_state = "chronx_hood"
 	flags = HEADCOVERSEYES | BLOCKHAIR
-	action_button_name = "Transform Hood"
+	actions_types = list(/datum/action/item_action/toggle)
 	var/adjusted = 0
 
 /obj/item/clothing/head/fluff/chronx/ui_action_click()
@@ -445,7 +445,7 @@
 	icon_state = "chronx_robe"
 	item_state = "chronx_robe"
 	flags_size = ONESIZEFITSALL
-	action_button_name = "Transform Robes"
+	actions_types = list(/datum/action/item_action/toggle)
 	adjust_flavour = "untransform"
 	ignore_suitadjust = 0