MODLink System (+ NWTLMM) (#77639)

## About The Pull Request
A pact made with `@Kapu1178`
Small changes you should not care about:
RD MODsuit outfit (admin only) no longer has a beret that blocks the
activation of the suit
The beret used by death squad officers no longer is blocked from being
put on a hat stabilizer module
Admins can now Shear matrices of objects in Modify Transform
Multitool buffers have been a little refactored to use a setter proc
that saves them from causing hard dels
Cooler stuff:
A revival and remake of [Nobody Wants To Learn Matrix
Math](https://github.com/tgstation/tgstation/pull/59103), this time with
additional tooling for quick matrix calculations.

![image](https://github.com/tgstation/tgstation/assets/23585223/eb387738-0839-463a-aed8-4703d139b11a)
The MODLink system, available through every MODsuit and MODLink scryers
(a neck item obtainable from advanced modsuit research or
charliestation)
Let's you make a holographic call with any other MODLink user, where you
can chat in realtime and see what's up with em

![image](https://github.com/tgstation/tgstation/assets/23585223/5a822f9f-e823-497e-b766-40055f2fc0d6)
![image](https://github.com/tgstation/tgstation/assets/23585223/062983ee-6058-4e78-a3aa-bccda1a3e224)


## Why It's Good For The Game
Adds a fun way for the crew to communicate with each other that can be
done in real-time with relative privacy compared to radio.

## Changelog
🆑 Fikou, Armhulen, Sheets (+rep for Mothblocks and Potato)
fix: RD MODsuit outfit (admin only) no longer has a beret that blocks
the activation of the suit
fix: The beret used by death squad officers no longer is blocked from
being put on a hat stabilizer module
admin: Admins can now Shear matrices of objects in Modify Transform
admin: Admins now have access to Test Matrices in the VV dropdown, an
all-in-one tool for editing transforms.
add: MODLink system, available through scryers (from RnD and Charlie
Station) and through MODsuits. Lets you call people with holographs!
/🆑

code/modules/mod/mod_ui.dm

@@ -15,6 +15,8 @@
 		"ai_name" = ai_assistant?.name,
 		"has_pai" = ispAI(ai_assistant),
 		"is_ai" = ai_assistant && ai_assistant == user,
+		"link_id" = mod_link.id,
+		"link_call" = mod_link.get_other()?.id,
 		// Wires
 		"open" = open,
 		"seconds_electrified" = seconds_electrified,
@@ -76,10 +78,6 @@
 	. = ..()
 	if(.)
 		return
-	if(locked && (!allowed(usr) || !ispAI(usr))) // pAIs automatically fail out of allowed()
-		balloon_alert(usr, "insufficient access!")
-		playsound(src, 'sound/machines/scanbuzz.ogg', 25, TRUE, SILENCED_SOUND_EXTRARANGE)
-		return
 	if(malfunctioning && prob(75))
 		balloon_alert(usr, "button malfunctions!")
 		return
@@ -87,6 +85,11 @@
 		if("lock")
 			locked = !locked
 			balloon_alert(usr, "[locked ? "locked" : "unlocked"]!")
+		if("call")
+			if(!mod_link.link_call)
+				call_link(usr, mod_link)
+			else
+				mod_link.end_call()
 		if("activate")
 			toggle_activate(usr)
 		if("select")