adapt the documentation of CreationAndDirectEditTool to the graphical
model
first adaptation of figures to the graphical model
this commit includes the changes of other class, which resulted through
the adaptation of the figures
adapted ORMGraphicalEditor, ORMGraphicalEditorPalette and
ORMMultiPageEditor to the graph
ical model
rename ORMCompartmentDiagramEditPart to ORMModelEditPart