Boxes (and sterile mask) (#1964)

* Added sprites and lights, handcuffs and PDA box.

* Syringe and Beaker

* Adds flashbang latex and a sterile mask

* Adds a box to store those sterile masks

* Adds donkpocket box WHY WASN'T THIS IN ALREADY I'LL KILL YOU ALL AHHHHH

* Makes inhand boxes grey

* Security boxes now have proper layer

* Adds meson, sechud, and better inhands

* Adds survival box (no o2 can or injector because they're not included yet

* Adds survival box sprites

* Blank commit

* Adds filled backpacks for starting-gear

* Moves filled backpacks to a sensible place

* Builds now

* Fixes rsi

Resources/Textures/Clothing/Masks/mask_sterile.rsi/meta.json

@@ -0,0 +1,51 @@
+{
+    "version": 1,
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/5a73e8f825ff279e82949b9329783a9e3070e2da",
+    "states": [
+        {
+            "name": "icon",
+            "directions": 1,
+        },
+        {
+            "name": "equipped-MASK",
+            "directions": 4,
+            "delays": [
+              [
+                1
+              ],
+              [
+                1
+              ],
+              [
+                1
+              ],
+              [
+                1
+              ]
+            ]
+        },
+        {
+            "name": "up-equipped-MASK",
+            "directions": 4,
+            "delays": [
+              [
+                1
+              ],
+              [
+                1
+              ],
+              [
+                1
+              ],
+              [
+                1
+              ]
+            ]
+        }
+    ]
+}