CreateSampleShapeDialog - Tidyed up code to create each shape details box and deletion is now recursive. Also removed 3D view until we are ready to implement it. It's usuable but confusing without the 3D view. Re #451

anything yet and isn't actually even registered with the factory. The GUI has most of the 
basic functionality needed but I still need to work out how to parse the binary tree 
properly to create the required XML string. Re #451