Adds the water cooler (#7724)

Resources/Textures/Structures/Storage/tanks.rsi/meta.json

@@ -1,7 +1,7 @@
 {
   "version": 1,
   "license": "CC-BY-SA-3.0",
-  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/8442af39ee82b813194f71db82edd2923d97818d",
+  "copyright": "Taken from tgstation at commit https://github.com/tgstation/tgstation/commit/8442af39ee82b813194f71db82edd2923d97818d, watercooler Taken from paradise at https://github.com/ParadiseSS13/Paradise/commit/ae2258d9235752ac6d80ec11e36553fe3b6ae59e",
   "size": {
     "x": 32,
     "y": 32
@@ -15,6 +15,9 @@
     },
     {
       "name": "highwatertank"
+    },
+    {
+      "name": "watercooler"
     }
   ]
 }