Karbon can now create shapes. Yay!

* vdocument contains now a list of all the existing shapes,
which i used by the shape managers for drawing
* vdocument is not longer a KoShapeController derived class but karbonpart is,
to have easier access to the shape manager of all the attached views
* to create shapes the shape id of the CreateShapeTool is set manually for now
* removed test code which added rectangle shapes from the layer shape