Added a customizable evening gown from Polaris Code (#5315)

* Added a customizable evening gown from Polaris Code

* Added changelog, better spriting work

* fixed desc

code/modules/client/preference_setup/loadout/loadout_uniform.dm

@@ -126,6 +126,14 @@
 	path = /obj/item/clothing/under/dress/dress_cap
 	allowed_roles = list("Captain")
 
+/datum/gear/uniform/customdress
+	display_name = "Evening gown"
+	path = /obj/item/clothing/under/dress/dress_evening
+
+/datum/gear/uniform/customdress/New()
+	..()
+	gear_tweaks = list(gear_tweak_free_color_choice)
+
 /datum/gear/uniform/corpsecsuit
 	display_name = "uniform, corporate (Security)"
 	path = /obj/item/clothing/under/rank/security/corp

code/modules/clothing/under/miscellaneous.dm

@@ -332,6 +332,13 @@
 	item_state = "p_suit"
 	worn_state = "dress_saloon"
 
+
+/obj/item/clothing/under/dress/dress_evening
+	name = "Evening Gown"
+	desc = "A silky gown, leaves much to the imagination"
+	icon_state = "red_evening_gown_s"
+	item_state = "red_evening_gown"
+
 /obj/item/clothing/under/dress/dress_cap
 	name = "captain's dress uniform"
 	desc = "Feminine fashion for the style concious captain."