Adds the antimatter engine (#1905)

* adds antimatter engine

* fixes some nullables

* fixes ALL OF THE NULLABLES

* adds explosions

* adds fancy lighting

* requested changes + license info

Co-authored-by: ancientpower <ancientpowerer@gmail.com>

Content.Shared/GameObjects/Components/Power/AME/SharedAMEShieldComponent.cs

@@ -0,0 +1,27 @@
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Content.Shared.GameObjects.Components.Power.AME
+{
+    public class SharedAMEShieldComponent : Component
+    {
+        public override string Name => "AMEShield";
+
+        [Serializable, NetSerializable]
+        public enum AMEShieldVisuals
+        {
+            Core,
+            CoreState
+        }
+
+        public enum AMECoreState
+        {
+            Off,
+            Weak,
+            Strong
+        }
+    }
+}