Made more stream base classes to help with tracking position

Made a proxy class.
Made all position tracking streams keep track of the authoritative printer

Tests/MatterControl.Tests/MatterControl/GCodeStreamTests.cs

@@ -28,6 +28,7 @@ either expressed or implied, of the FreeBSD Project.
 */
 
 using MatterHackers.MatterControl.PrinterCommunication.Io;
+using MatterHackers.VectorMath;
 using NUnit.Framework;
 
 namespace MatterControl.Tests.MatterControl
@@ -98,5 +99,10 @@ namespace MatterControl.Tests.MatterControl
         {
             return lines[index++];
         }
+
+        public override Vector3 SetPrinterPosition(Vector3 position)
+        {
+            return position;
+        }
     }
 }