Gas tanks and masks (#2409)

Co-authored-by: a.rudenko <creadth@gmail.com>
Co-authored-by: creadth <creadth@users.noreply.github.com>
Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Resources/Prototypes/Atmospherics/gases.yml

@@ -2,24 +2,32 @@
   id: 0
   name: Oxygen
   specificHeat: 20
+  heatCapacityRatio: 1.4
+  molarMass: 32
   color: 2887E8
 
 - type: gas
   id: 1
   name: Nitrogen
   specificHeat: 30
+  heatCapacityRatio: 1.4
+  molarMass: 28
   color: DA1010
 
 - type: gas
   id: 2
   name: Carbon Dioxide
   specificHeat: 30
+  heatCapacityRatio: 1.3
+  molarMass: 44
   color: 4e4e4e
 
 - type: gas
   id: 3
   name: Phoron
   specificHeat: 200
+  heatCapacityRatio: 1.7
+  molarMass: 120 #creadth: making it very heavy (x4 of oxygen), idk what the proper value should be
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: phoron
   color: FF3300
@@ -28,6 +36,8 @@
   id: 4
   name: Tritium
   specificHeat: 10
+  heatCapacityRatio: 1.3
+  molarMass: 6
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: tritium
   color: 13FF4B
@@ -36,6 +46,8 @@
   id: 5
   name: Water Vapor
   specificHeat: 40
+  heatCapacityRatio: 1.33
+  molarMass: 18
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: water_vapor
   color: bffffd