Block matching basics complete

Filtration.ObjectModel/SocketGroup.cs

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+using System;
+using System.Collections.Generic;
+
+namespace Filtration.ObjectModel
+{
+    public class SocketGroup : List<Socket>
+    {
+        public SocketGroup(List<Socket> sockets, bool linked)
+        {
+            if (sockets.Count < 1 || sockets.Count > 6)
+            {
+                throw new InvalidOperationException("A socket group must have between 2 and 6 sockets");
+            }
+
+
+            if (linked && sockets.Count < 2)
+            {
+                throw new InvalidOperationException("A linked socket group must have at least 2 sockets");
+            }
+
+            AddRange(sockets);
+            Linked = linked;
+        }
+
+        public bool Linked { get; }
+    }
+}