Adds clothing production for Botany (#40563)

cl MMMiracles
add: Botany can now grow cotton to produce cloth for various jumpsuits.
add: Cotton can be mutated into a much more durable strand, allowing for the production of crude armor.
add: Rainbow flowers, an alternative for clothing dyeing, is obtainable through cargo's exotic seed crate.
add: A loom can now be crafted with some planks so you can actually weave that cotton into a usable fabric.
add: Fannypacks, softcaps, beanies and scarves are now craftable with cloth and dyeable.
/cl

[why]: A way to produce clothing and naturally obtain cloth past ripping up other stuff seemed useful and with the economy aspect, might actually have some extra use.

code/game/objects/structures/loom.dm

@@ -0,0 +1,19 @@
+/obj/structure/loom
+	name = "loom"
+	desc = "A simple device used to weave cloth and other thread-based fabrics together into usable material."
+	icon = 'icons/obj/hydroponics/equipment.dmi'
+	icon_state = "loom"
+	density = TRUE
+	anchored = TRUE
+
+/obj/structure/loom/attackby(obj/item/stack/sheet/W, mob/user)
+	if(W.is_fabric && W.amount > 1)
+		user.show_message("<span class='notice'>You start weaving the [W.name] through the loom..</span>", 1)
+		if(W.use_tool(src, user, W.pull_effort))
+			new W.loom_result(drop_location())
+			user.show_message("<span class='notice'>You weave the [W.name] into a workable fabric.</span>", 1)
+			W.amount = (W.amount - 2)
+			if(W.amount < 1)
+				qdel(W)
+	else
+		user.show_message("<span class='notice'>You need a valid fabric and at least 2 of said fabric before using this.</span>", 1)