Shell May Cry: A comprehensive rework of synthetics. (#20721)

https://www.youtube.com/watch?v=9mPvZ96pHJI

A pull request commissioned by the Synthetic Lore Team to
comprehensively rework synthetics (read: IPCs) and how they work in
Aurora. The objective is to make IPCs as unique as possible from humans,
upgrading the robotic feel and atmosphere, while also preserving a good
sense of balance in-game.

Key features:

- A comprehensive expansion of synthetic organs, all of which now
fulfill a purpose: hydraulics, cooling units, power systems, actuators,
diagnostics units.
- Customizable organs with benefits and drawbacks, such as with cooling
units and power systems.
- Unique ways to repair the organs and more involved steps.
- Unique damage mechanics - every organ has wiring and electronics which
affect its functioning, and they are defended by plating which provides
natural armour.
- Improved and immersive diagnostics.
- Unique features, benefits, and drawbacks for every IPC frame.
- A rework of the positronic brain, which can be either destroyed or
shut down, alongside effects caused by low integrity.
- A rework of how EMPs affect IPC organs.
- Non-binary damage states for each organ.

To-do:

- [x] Finish the unique features for each frame.
- [x] Look into if mechanical synthskin is possible.
- [x] Power system.
- [x] Posibrain mechanics.
- [ ] Passive cooling expansion.
- [x] EMP mechanics.
- [x] Repair mechanics.
- [x] Mob weight mechanics.
- [ ] Gurney for heavy mobs.
- [x] New augments.
- [ ] IPC tag scanning and flashing.

---------

Signed-off-by: Werner <1331699+Arrow768@users.noreply.github.com>
Co-authored-by: Matt Atlas <liermattia@gmail.com>
Co-authored-by: Geeves <22774890+Geevies@users.noreply.github.com>
Co-authored-by: Werner <1331699+Arrow768@users.noreply.github.com>

code/_onclick/hud/fullscreen.dm

@@ -114,6 +114,10 @@
 	icon_state = "brutedamageoverlay6"
 	alpha = 0
 
+/atom/movable/screen/fullscreen/robot_pain
+	icon = 'icons/mob/screen/robot_pain.dmi'
+	alpha = 255
+
 /atom/movable/screen/fullscreen/flash
 	icon = 'icons/mob/screen/effects.dmi'
 	screen_loc = "WEST,SOUTH to EAST,NORTH"

code/_onclick/hud/human.dm

@@ -324,6 +324,10 @@
 		mymob.up_hint.screen_loc = ui_up_hint
 		hud_elements |= mymob.up_hint
 
+	if(hud_data.has_robot_pain)
+		mymob.robot_pain = new /atom/movable/screen/fullscreen/robot_pain()
+		hud_elements |= mymob.robot_pain
+
 	mymob.pain = new /atom/movable/screen/fullscreen/pain(null)
 	hud_elements |= mymob.pain