These messages were perhaps originally intended as a debuggin aid but now add clutter to the output panes. Remaining messges are mostly the result of methods to display attributes of an object (which one could call from the Python console) or actually provide some information which would not be obvious from the circumstances
This includes `view_array`, `view_base`, `view_bezcurve`,
`view_bspline`, `view_circulararray`, `view_clone`, `view_dimension`,
`view_draft_annotation`, `view_draftlink`, `view_facebinder`,
`view_fillet`, `view_label`, `view_orthoarray`, `view_point`,
`view_polararray`, `view_rectangle`, `view_text`, `view_wire`,
`view_wpproxy`.
These are added to the `draftviewproviders` Doxygen group
so that the functions and classes contained in each module
are listed appropriately in the automatically generated
documentation.
The improvements are done to `ViewProviderWire` which propagates
to many objects like Line, Wire (polyline), BSpline, BezCurve,
Fillet, etc.
The initialization of the properties is moved to a method
`_set_properties`. The properties `EndArrow`, `ArrowSize`,
`ArrowType` are created only if they do not exist.
This allows calling `ViewProviderWire(obj.ViewObject)`
to migrate an older object to this viewprovider
but without adding duplicated properties.
In particular, this is done to support the migration of the older
`Fillet` object.
