#391 Done Lathe animations (#774)

* Draft PR, do not merge

* Lathe now uses animations. Timing is still wrong, code is very wet, repetitions and unused layers are there.

* Removed (unneeded?) PowerDeviceVisualizer from the lathe
Refactored & Renamed code and variables
Renamed animation names

* WIP protolathe animation

* Working protolathe animation.
I still don't like the solution though.

Content.Shared/GameObjects/Components/Power/SharedLatheComponent.cs

@@ -0,0 +1,14 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components.Power
+{
+    [Serializable, NetSerializable]
+    public enum LatheVisualState
+    {
+        Idle,
+        Producing,
+        InsertingMetal,
+        InsertingGlass
+    }
+}