* Fix and add menu accelerators: menus common to all workbenches
I use menu accelerators fairly often, so I find it very frustrating when
they are missing, or worse, they don't work due to the same letter being
assigned to several commands.
This patch adds accelerators to lots of menu entries missing them and
fixes broken accelerators.
Wherever possible, standard accelerator keys are used:
https://doc.qt.io/qt-5/accelerators.html
This commit covers accelerator fixes that are common to all workbenches.
Accelerator fixes for specific workbenches will be done in separate
commits.
* Add missing accelerators: Spreadsheet workbench
Every time the InvoluteGearFeature python module was imported, and we're
in GUI context, the command "PartDesign_InvoluteGear" was registered. On
the 2nd (3rd, ...) time, this was reported as an error in the console,
like "error: Command.cpp(1841): duplicate command PartDesign_InvoluteGear"
The first import happens when the PartDesign FreeCAD Module is loaded,
via `InitGui.py`. Subsequent imports may happen when e.g. executing the
involute gear command or when running it's tests via FC's Test WB.
This change now registers the command only then the PartDesign WB is set
up in InitGui, not when importing the python module. The same fix is
applied for sprocket, where the same pattern for command registration
was used.
In addition, the import error catch was removed, which seems to be a copy
paste left-over from the ShaftWizard. In contrast to ShaftWizard,
involute gear and sprocket only use modules from the Python standard lib,
so I think this precaution is not worth the additional complexity, just
for hiding actual errors.
Copy on change properties propagated to SubShapeBinder can be changed
there and then updated in the base body (support). On the other hand,
they might be used in calculation of some other properties in the base
body which could also be copy on change and propagated to the same
SubShapeBinder. It looks natural that these latter properties should be
updated with the calculation results as well.
Example:
Body has copy on change properties A = 200 mm and B = 3 * A = 600 mm.
SubShapeBinder with support of Body has A changed to 300 mm and expects
B = 3 * 300 mm = 900 mm. Without this change B is not updated and equals
to 600 mm in SubShapeBinder as well.
This commit is generated using regex based find and replace:
```
s/[\w:]+_cast\s*<([^>]+)\*>\s*\(\s*getObject\(\s*\)\)/getObject<$1>/
s/[\w:]+_cast\s*<([^>]+)\*>\s*\(\s*([^)]*)\s*->\s*getObject\(\s*\)\)/$2->getObject<$1>()/
```
To regenerate if needed.
Most of App::Origin is moved into this sub class of App::Origin.
Add App::Point. Change graphics of the planes/axis.
Remove scale-by-content behavior and make it fixed size on screen.
