Department and Round Goals (#7369)

* Baseline work for Department Goals. Implements round-end stats, based in 3 categories of roughly-more-interesting to less interesting.

* Active Goal Separation.

* Map.

* Actually does the second half of this in this PR instead of a different one.

code/modules/organs/organ_external.dm

@@ -840,6 +840,8 @@ Note that amputating the affected organ does in fact remove the infection from t
 	if(disintegrate == DROPLIMB_EDGE && nonsolid)
 		disintegrate = DROPLIMB_BLUNT //splut
 
+	GLOB.lost_limbs_shift_roundstat++
+
 	switch(disintegrate)
 		if(DROPLIMB_EDGE)
 			if(!clean)