Field of Vision component. (#12075)

* Hopeless WIP for vision cones.

* Core component and hooks done

* Removing clutter.

* linter bashing me for using statements as args.

* Ok.

* continue

* bring back the macro

* Configs and openspace filter.

* Chat plane, reset perspective signal, mechs/vehicles cases, machineries.

* view, viewers and spoopy ghosts.

* Renamed component, admin fun button and snowflakes robots.

* Whoopsie.

* Yikes

* test merge tweak.

* radial yaketi sax.

* Fixed tgui UIs, some messages not displayed to the target.

* Documentation and a little bugfix.

* Pulling QoL, seventh plane made in this PR.

* Fix.

* Tweaks and improvements.

* Update randomverbs.dm

code/game/objects/structures/false_walls.dm

@@ -7,6 +7,7 @@
 	anchored = TRUE
 	icon = 'icons/turf/walls/wall.dmi'
 	icon_state = "wall"
+	plane = WALL_PLANE
 	layer = LOW_OBJ_LAYER
 	density = TRUE
 	opacity = 1