Some more RCD Designs & Patches (#72757)

## About The Pull Request
Adds some more stuff you can build with the RCD
1. Under structures you can now build/deconstruct catwalks & construct
Reflector Frames. Destorying a catwalk will cut any cable on it leaving
pieces of it behind
![Screenshot
(92)](https://user-images.githubusercontent.com/110812394/212850493-b7a5d25a-dab5-42e4-bd56-8e7045023984.png)


2. If you have the frames upgrade you can construct APC, Air Alarm &
Fire Alarm frames on walls & Flood light fixtures[fully wired]. It only
creates the wall mount and sticks it on the wall. Wiring, Circuits and
finishing the frame is still your job
![Screenshot
(94)](https://user-images.githubusercontent.com/110812394/214264787-188c7783-473a-4f34-84c1-00ad73520f22.png)

3. If you have the furnishing upgrade you can create racks & beds &
additional bar stool
![Screenshot
(95)](https://user-images.githubusercontent.com/110812394/214264893-96b52fc9-1502-45af-bee3-724cce1935af.png)


**Important Code Refractors**
1. `/turf/closed/wall/proc/try_wallmount()` will return true only after
you have successfully mounted the wallframe or stuck an poster on it &
not simply check if you are trying to mount a valid thing on it
2. `apc_tool_act/rcd_act()` was incorrectly checking passed_mode for the
simple circuit upgrade and not the `the_rcd.upgrade `flag. Thats fixed
now to
3. newly created APC's weren't assigning themselves to their areas
allowing multiple to be created in one area. Thats fixed now
4. Walls, Airlocks & other stuff could be built on tiles having
something dense that would block it. For example a wall could be build
on top of a machine frame!!. Thats also fixed now

## Why It's Good For The Game
More stuff you can build rapidly with the RCD

## Changelog
🆑
add: more designs for the rcd
refactor:` try_wallmount()` to return true only after successful mount
fix: `apc_tool_act/rcd_act()` incorrecly checking for simple circuits
upgrade in the wrong variable
fix: newly created APC's not assigning themselves to their areas.
fix: rcd building structures [walls, airlocks etc] on turf's that
already have structures on them
/🆑

code/game/objects/structures/lattice.dm

@@ -59,6 +59,8 @@
 /obj/structure/lattice/rcd_vals(mob/user, obj/item/construction/rcd/the_rcd)
 	if(the_rcd.mode == RCD_FLOORWALL)
 		return list("mode" = RCD_FLOORWALL, "delay" = 0, "cost" = 2)
+	if(the_rcd.mode == RCD_CATWALK)
+		return list("mode" = RCD_CATWALK, "delay" = 0, "cost" = 1)
 
 /obj/structure/lattice/rcd_act(mob/user, obj/item/construction/rcd/the_rcd, passed_mode)
 	if(passed_mode == RCD_FLOORWALL)
@@ -68,6 +70,12 @@
 			T.PlaceOnTop(/turf/open/floor/plating, flags = CHANGETURF_INHERIT_AIR)
 			qdel(src)
 			return TRUE
+	if(passed_mode == RCD_CATWALK)
+		to_chat(user, span_notice("You build a catwalk."))
+		var/turf/turf = loc
+		qdel(src)
+		new /obj/structure/lattice/catwalk(turf)
+		return TRUE
 	return FALSE
 
 /obj/structure/lattice/singularity_pull(S, current_size)
@@ -101,6 +109,19 @@
 		C.deconstruct()
 	..()
 
+/obj/structure/lattice/catwalk/rcd_vals(mob/user, obj/item/construction/rcd/the_rcd)
+	if(the_rcd.mode == RCD_DECONSTRUCT)
+		return list("mode" = RCD_DECONSTRUCT, "delay" = 10, "cost" = 5)
+	return FALSE
+
+/obj/structure/lattice/catwalk/rcd_act(mob/user, obj/item/construction/rcd/the_rcd, passed_mode)
+	if(passed_mode == RCD_DECONSTRUCT)
+		var/turf/turf = loc
+		for(var/obj/structure/cable/cable_coil in turf)
+			cable_coil.deconstruct()
+		qdel(src)
+		return TRUE
+
 /obj/structure/lattice/catwalk/mining
 	name = "reinforced catwalk"
 	desc = "A heavily reinforced catwalk used to build bridges in hostile environments. It doesn't look like anything could make this budge."