Aether Displacement Engine (#5590)

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## About The Pull Request
Adds a rare device that uses hydrogen to remove thermal energy
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:cl:
add: Added "Aether Displacement Engine" a new toy engineering will
soonish get their hands on
/:cl:

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citadel.dme

@@ -1294,6 +1294,7 @@
 #include "code\game\machinery\teleporter\projector.dm"
 #include "code\game\machinery\virtual_reality\ar_console.dm"
 #include "code\game\machinery\virtual_reality\vr_console.dm"
+#include "code\game\machinery\vitruvius\anti_heater.dm"
 #include "code\game\magic\Uristrunes.dm"
 #include "code\game\mecha\mech_bay.dm"
 #include "code\game\mecha\mech_fabricator.dm"

code/game/machinery/vitruvius/anti_heater.dm

@@ -0,0 +1,38 @@
+/// The "Idro Repression Injection System" uses fusion fuel gas to remove heat from the area
+/obj/machinery/portable_atmospherics/aether_displacement_engine
+	name = "Aether Displacement Engine"
+	desc = "A weird machine, it seems to have a connector that fits the standard atmospherics port. It has been marked by the Nanotrasen Artifact Recovery and Utilisation Group as 'Safe for standard NT operations'"
+
+	icon = 'icons/machinery/vitruvius/iris.dmi'
+	icon_state = "iris_idle"
+
+	base_pixel_x = -16
+	base_pixel_y = -16
+
+	density = TRUE
+	volume = 100
+
+	var/cooling_power = -160 KILOWATTS //per mol of fusion fuel
+
+	var/lowest_temp = 100
+
+	var/mol_cap_modifier = 1//The higher the more moles are consumed per second, and the more is cooled, to increase cost to cool lower cooling power
+	//if we wanted to go by the Oxygen not included consumption, this would be 2.5, which would drain a cannister of hydrogen in 12 minutes
+	// with 1 it lasts for about 30 mintues
+
+/obj/machinery/portable_atmospherics/aether_displacement_engine/process(delta_time)
+	. = ..()
+	var/datum/gas_mixture/env = loc.return_air()
+	var/energy_to_target = env.get_thermal_energy_change(100)
+	var/moles_to_cool = clamp(energy_to_target / cooling_power,0,delta_time * mol_cap_modifier)//10 moles per second, delta time is in 1/10 seconds, so delta_time is our moles count
+	var/datum/gas_mixture/fuel_found = get_fusion_fuel(moles_to_cool)
+	env.adjust_thermal_energy(fuel_found.total_moles * cooling_power)
+
+
+/obj/machinery/portable_atmospherics/aether_displacement_engine/proc/get_fusion_fuel(moles_needed)
+	return air_contents.remove_by_flag(GAS_FLAG_FUSION_FUEL, moles_needed)
+
+/obj/machinery/portable_atmospherics/aether_displacement_engine/anomaly
+	desc = "A weird machine, it seems to have a connector that fits the standard atmospherics port. It is bearing marks of 'Vitruvius' who ever that is."
+
+