Reworks the turbine to be an actual engine (#2585)

## About The Pull Request

This PR allows the turbine to provide thrust like a real engine while
it's running (equivalent to around 4 plasma thrusters while running at
maximum power) and fixes a few things like being able to make power from
nothing and disconnecting when docking or undocking.

Also updates the sprites to make it nicer to look at.


![260364787-c289bee8-8389-48de-a6da-29b305bed64d](https://github.com/shiptest-ss13/Shiptest/assets/93578146/5d8a1d2b-0771-4267-859d-900a8a7d62c9)
Sprites are from BeeStation/BeeStation-Hornet#7634, by PestoVerde322 and
PacifistDalek

## Why It's Good For The Game

For how much worse and less efficient the turbine is at power generation
compared to the TEG, I thought it deserved a secondary use to make it
more interesting. This also allows for the possibility of a new ship
that uses one (or more!) as its main engine, which would be cool.

Also turbines violating the laws of thermodynamics to make power from
nowhere is maybe bad or something.

## Changelog

:cl: sapphicoverload, PestoVerde322, PacifistDalek
add: turbines now provide thrust for ships
tweak: turbines respect conservation of energy instead of moving gas
around for free
tweak: turbine control console now shows the internal pressure of the
turbine
code: refactored how gas flows through the turbine
fix: fixed turbines making free energy from nowhere at low RPM
fix: fixed turbines forcing air into the output turf when it's blocked
fix: fixed turbines not updating air at the input and output turfs
fix: fixed turbines disconnecting when docking and undocking
imageadd: new turbine sprites
/:cl:

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_maps/RandomRuins/SandRuins/whitesands_surface_waterplant.dmm

@@ -1482,7 +1482,7 @@
 /turf/open/floor/plating,
 /area/ruin/powered)
 "LM" = (
-/obj/machinery/power/turbine,
+/obj/machinery/power/shuttle/engine/turbine,
 /turf/open/floor/plating/asteroid/whitesands,
 /area/overmap_encounter/planetoid/sand/explored)
 "LN" = (

code/game/machinery/shuttle/shuttle_engine.dm

@@ -12,7 +12,7 @@
 	var/enabled = TRUE
 	///How much thrust this engine generates when burned fully.
 	var/thrust = 0
-	///I don't really know what this is but it's used a lot
+	///Whether this engine is actively providing thrust to the ship
 	var/thruster_active = FALSE
 
 /**