Part Reverse Shape command does not have icon for the FreeCAD UI (Part WB).
This commit adds SVG file with icon for this command. Also, it makes the necessary changes on Command.cpp and Part.qrc files.
The new SVG icon follows the FreeCAD Artwork Guidelines and were saved as Plain SVG format.
The icon designs keep the style of the existing icons in the Part Workbench:
https://wiki.freecadweb.org/Part_Module
The discussion with the request can be found in the UX/UI Design FreeCAD Forum:
https://forum.freecadweb.org/viewtopic.php?f=34&t=44278&hilit=bitacovir
It saves a lot of work if one can directly pad in any direction and OCC allows this.
This PR adds the possibility to define a custom vector for the padding direction.
As suggested by @Vanuan. and already implemented in new experimental BIM Wall: 1084a4b0a9
Draft: updated Draft Edit
thanks to the suggestions by @Vanuan
Draft: further bugfixing and improvements in Draft_Edit
Draft: moved Draft_Edit preview code into respective GuiTools
Because Gui::ViewProviderLink can be used to override the view provider
of any object, it is not safe to assume view provider type without
explicit checking.
Small fixes where the `get_svg` function is used, for example,
in the (obsolete) `DrawingView` class and `Arch_SectionPlane`.
Also update the unit tests accordingly.