Pow3r: stage 1 (#4208)

Co-authored-by: 20kdc <asdd2808@gmail.com>

Content.Shared/Light/Component/SharedEmergencyLightComponent.cs

@@ -0,0 +1,11 @@
+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Light.Component
+{
+    [Serializable, NetSerializable]
+    public enum EmergencyLightVisuals
+    {
+        On,
+    }
+}

Content.Shared/NodeContainer/NodeVis.cs

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+using System;
+using System.Collections.Generic;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Maths;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.NodeContainer
+{
+    public static class NodeVis
+    {
+        [Serializable, NetSerializable]
+        public sealed class MsgEnable : EntityEventArgs
+        {
+            public MsgEnable(bool enabled)
+            {
+                Enabled = enabled;
+            }
+
+            public bool Enabled { get; }
+        }
+
+        [Serializable, NetSerializable]
+        public sealed class MsgData : EntityEventArgs
+        {
+            public List<GroupData> Groups = new();
+            public List<int> GroupDeletions = new();
+        }
+
+        [Serializable, NetSerializable]
+        public sealed class GroupData
+        {
+            public int NetId;
+            public string GroupId = "";
+            public Color Color;
+            public NodeDatum[] Nodes = Array.Empty<NodeDatum>();
+        }
+
+        [Serializable, NetSerializable]
+        public sealed class NodeDatum
+        {
+            public EntityUid Entity;
+            public int NetId;
+            public int[] Reachable = Array.Empty<int>();
+            public string Name = "";
+            public string Type = "";
+        }
+    }
+}

Content.Shared/Wires/SharedWireVisComponent.cs

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+using System;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Wires
+{
+    [Serializable, NetSerializable]
+    public enum WireVisVisuals
+    {
+        ConnectedMask
+    }
+
+    [Flags]
+    [Serializable, NetSerializable]
+    public enum WireVisDirFlags : byte
+    {
+        None = 0,
+        North = 1,
+        South = 2,
+        East = 4,
+        West = 8
+    }
+}