PR - Gender Update (#14406)

* PR - Gender Update

Gives Gender three states instead of two. This allows clones of tri-gendered species to properly carry their genders over to new bodies (e.g. Greys, Drask, etc.).

Tristate Gender Set Proc
Tristate Gender Get Proc
Fixes where Binary State was needed.

* Update update_icons.dm

Yeah, let's _not_ have Genderless folks get inconsistently gendered body part sprites (e.g. head, groin, torso mismatch).

* Update dna2.dm

* Update dna2.dm

* Update organ_icon.dm

* Update update_icons.dm

* Update dna2_helpers.dm

* Update organ_icon.dm

Readability (spacing)

* Update dna_injector.dm

* Update dna2.dm

* Changes made per Affected's requests.

Changes made per Affected's feedback.

* Update dna2.dm

Got our heads too deep in using this just for DNA_UI_GENDERr - returning the Set and Get procs to 0, 1, 2 as per Affected's request.

While in there, noticed some housekeeping items:
- reorganized the ranges so they flow numerically now
- changed the ranges so they don't overlap (line 205 having been the worst)
- removed the "else" statement from line 222 since we're using ASSERTS. There shouldn't be a value outside the range of 0 to 2 for this.

code/modules/mob/living/carbon/human/update_icons.dm

@@ -1289,6 +1289,9 @@ GLOBAL_LIST_EMPTY(damage_icon_parts)
 	var/husk = (HUSK in mutations)
 	var/hulk = (HULK in mutations)
 	var/skeleton = (SKELETON in mutations)
+	var/g = dna.GetUITriState(DNA_UI_GENDER)
+	if(g == DNA_GENDER_PLURAL)
+		g = DNA_GENDER_FEMALE
 
 	. = ""
 
@@ -1317,8 +1320,8 @@ GLOBAL_LIST_EMPTY(damage_icon_parts)
 		if(part)
 			var/datum/species/S = GLOB.all_species[part.dna.species.name]
 			. += "[S.race_key]"
-			. += "[part.dna.GetUIState(DNA_UI_GENDER)]"
 			. += "[part.dna.GetUIValue(DNA_UI_SKIN_TONE)]"
+			. += "[g]"
 			if(part.s_col)
 				. += "[part.s_col]"
 			if(part.s_tone)