Changes

[481741] Delete IControlFactory, which was inlined.

[481748] Remove 'FX' prefix from classes provided by FX bundle.

- Renamed IFXAnchor to IAnchor, AbstractFXAnchor to AbstractAnchor,
FXChopBoxAnchor to ChopBoxAnchor and FXStaticAnchor to StaticAnchor.
- Renamed FXGeometryNode to GeometryNode.
- Renamed FXConnection to Connection, IFXDecoration to
IConnectionDecoration, and IFXConnectionRouter to IConnectionRouter,
FXPolyBezierConnectionRouter to PolyBezierConnectionRouter, and
FXPolylineConnectionRouter to PolylineConnectionRouter.
- Renamed AbstractFXGesture to AbstractGesture,
AbstractFXMouseDragGesture to AbstractMouseDragGesture,
AbstractFXPinchSpreadGesture to AbstractPinchSpreadGesture, and
AbstractFXRotateGesture to AbstractRotateGesture.
- Split FXUtils into NodeUtils and CursorUtils and moved it into
o.e.g4.fx.utils package.
- Renamed ImageViewHoverOverlay to HoverOverlayImageView.

[481750] Add 'Abstract' prefix to FXEditor and FXView.

To ensure consistency with the GEF4 naming conventions, renamed FXEditor
to AbstractFXEditor and FXView to AbstractFXView.