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/Textures/Objects/Tanks/oxygen.rsi/meta.json

@@ -0,0 +1,27 @@
+{
+    "version": 1,
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/e1142f20f5e4661cb6845cfcf2dd69f864d67432",
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [
+        {
+            "name": "icon",
+            "directions": 1
+        },
+        {
+            "name": "equipped-BACKPACK",
+            "directions": 4
+        },
+        {
+            "name": "inhand-left",
+            "directions": 4
+        },
+        {
+            "name": "inhand-right",
+            "directions": 4
+        }
+    ]
+}