still have to split viewprovider from object.
[Draft] Dimension Style code cleanup
thx @vocx-fc for reviewing
further cleanup
[Draft] Dimension Style improvements
Added a property to the dimension object to link the dimension style.
Improved the update of dimensions when style changes. This can be done in 2 different ways: by setting AutoUpdate property to True or by activating Update function from the viewprovider context menu.
It replaces the older `Draft_Array` command, and provides
a task panel to select the properties, similar to the
`Draft_PolarArray` and `Draft_CircularArray` commands.
It can also create `App::Links` directly from this task
panel, so it also replaces the `Draft_LinkArray`
introduced by the LinkMerge.
