Fix Silicon Examine Text

Move registration of human prefs signal to flavor_text/carbon subtype.
Remove human specific constraint from update_prefs_flavor_text.
Add flavor_text/silicon subtype.

code/modules/mob/living/silicon/silicon.dm

@@ -57,7 +57,8 @@
 
 /mob/living/silicon/ComponentInitialize()
 	. = ..()
-	AddElement(/datum/element/flavor_text, "", "Silicon Flavor Text", "", MAX_FLAVOR_LEN, FALSE, TRUE, "silicon_flavor_text")
+	// GS13: Silicon Examine Text
+	AddElement(/datum/element/flavor_text/silicon, "", "Silicon Flavor Text", "", MAX_FLAVOR_LEN, FALSE, TRUE, "silicon_flavor_text")
 	AddElement(/datum/element/flavor_text, "", "Temporary Flavor Text", "This should be used only for things pertaining to the current round!")
 
 /mob/living/silicon/med_hud_set_health()

code/modules/mob/transform_procs.dm

@@ -372,6 +372,9 @@
 
 	var/mob/living/silicon/robot/R = new /mob/living/silicon/robot(loc)
 
+	// GS13: Silicon Examine Text
+	SEND_SIGNAL(R, COMSIG_SILICON_PREFS_COPIED_TO, src)
+
 	R.gender = gender
 	R.invisibility = 0