Adds a nitrogen tank to engineering lockers (#9019)

Resources/Prototypes/Catalog/Fills/Lockers/cargo.yml

@@ -8,6 +8,7 @@
 # Should be moved to a suit storage unit when/if they are added.
       - id: ClothingOuterHardsuitSalvage
       - id: YellowOxygenTankFilled
+      - id: NitrogenTankFilled
       - id: ClothingShoesBootsMag
       - id: ClothingMaskGasExplorer
       - id: OreBag

Resources/Prototypes/Catalog/Fills/Lockers/engineer.yml

@@ -83,6 +83,7 @@
       - id: ClothingOuterHardsuitAtmos
       - id: ClothingMaskGasAtmos
       - id: YellowOxygenTankFilled
+      - id: NitrogenTankFilled
       - id: ClothingOuterSuitAtmosFire
       - id: ClothingHeadHelmetAtmosFire
       - id: GasAnalyzer
@@ -100,6 +101,7 @@
       - id: ClothingHandsGlovesColorYellow
       - id: ClothingMaskGas
       - id: OxygenTankFilled
+      - id: NitrogenTankFilled
       - id: ClothingShoesBootsMag
 
 - type: entity

Resources/Prototypes/Catalog/Fills/Lockers/heads.yml

@@ -94,6 +94,7 @@
       - id: ClothingOuterHardsuitEngineeringWhite
       - id: ClothingMaskBreath
       - id: OxygenTankFilled
+      - id: NitrogenTankFilled
       - id: ClothingNeckCloakCe
       - id: ClothingEyesGlassesMeson
       - id: ClothingBeltChiefEngineerFilled