First commit.

Source/OpenNest.Core/CNC/Comment.cs

@@ -0,0 +1,31 @@
+namespace OpenNest.CNC
+{
+    public class Comment : ICode
+    {
+        public Comment()
+        {
+        }
+
+        public Comment(string value)
+        {
+            Value = value;
+        }
+
+        public string Value { get; set; }
+
+        public CodeType Type
+        {
+            get { return CodeType.Comment; }
+        }
+
+        public ICode Clone()
+        {
+            return new Comment(Value);
+        }
+
+        public override string ToString()
+        {
+            return ':' + Value;
+        }
+    }
+}