functional gender changing chemicals that respect the users prefs cleanly.

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

@@ -98,6 +98,7 @@
 	mob_swap_flags = ~HEAVY
 
 	var/identifying_gender // In case the human identifies as another gender than it's biological
+	var/gender_change_cooldown = 0 // A cooldown for gender and gender indentify changing procs to make it easy to avoid spam of gender change
 
 	var/step_count = 0 // Track how many footsteps have been taken to know when to play footstep sounds