Jetpacks (#9023)

* Movement acceleration

* tweaks

* Weightless refactor coz fuck it

* CCVars

* weightless movement tweaks

* Some cleanup while I'm here

* dorkpacks

* thanks fork

* fixes

* zoomies

* toggles

* hmm

* yamls

* b

* so true

* Effects refactor

* namespace

* review

Resources/Textures/Objects/Tanks/Jetpacks/void.rsi/meta.json

@@ -0,0 +1,41 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/1592a112e3d33eec4a0704b518a138d5a976f455",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "icon",
+      "directions": 1
+    },
+    {
+      "name": "icon-on",
+      "directions": 1,
+      "delays": [
+        [
+          0.2,
+          0.2
+        ]
+      ]
+    },
+    {
+      "name": "inhand-left",
+      "directions": 4
+    },
+    {
+      "name": "inhand-right",
+      "directions": 4
+    },
+    {
+      "name": "equipped-BACKPACK",
+      "directions": 4
+    },
+    {
+      "name": "on-equipped-BACKPACK",
+      "directions": 4
+    }
+  ]
+}