Hurties

Implemented some of these ideas
http://baystation12.net/forums/viewtopic.php?f=5&t=11043&p=235535#p235498

Missing limbs are not processed, their wounds disappear, germ levels are reset.
One big wound is spawned on parent organ instead. Size of wound depends on destroyed organ.
It might be worth creating special wound types specifically for lost organs so that they can have their own examine text. Maybe something like:

```
/** EXTERNAL ORGAN LOSS **/
/datum/wound/lost_limb
	damage_type = CUT
	stages = list("ripped stump" = 65, "bloody stump" = 50, "clotted stump" = 25, "scarred stump" = 0)
	max_bleeding_stage = 3
	
	proc/can_merge(var/datum/wound/other)
		return 0 //cannot be merged

/datum/wound/lost_limb/small
	stages = list("ripped stump" = 40, "bloody stump" = 30, "clotted stump" = 15, "scarred stump" = 0)
```
I guess you could either choose the would type here or perhaps add a var to organ/external holding the pathname.