Extinguisher cabinet (#1976)

* 1779 Add extinguisher cabinet base item, rsi, and class based on potted plant

* Pretty much the rest of the owl

* Allow construction

* no more deconstruction

* pr fixes

Content.Shared/GameObjects/Components/ExtinguisherCabinet.cs

@@ -0,0 +1,12 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components
+{
+    [Serializable, NetSerializable]
+    public enum ExtinguisherCabinetVisuals
+    {
+        IsOpen,
+        ContainsExtinguisher
+    }
+}