Also make various improvements in style, PEP8, return value
is now a tuple of lists instead of a list of lists.
Delay the import of other modules like `Part` and `DraftGeomUtils`
using the `LazyLoader` class.
Update the Gui Command as well.
The maximum button size was too small to fit the icon
together with the text, if the text size was large.
Also added more tooltips to all widgets of the editor.
Introduced in d087ccfa54, 7aa42a4406, 1e8d5d0355.
Make it PEP8 compliant, and shorten line lengths.
It is based on `GuiCommandSimplest` to inherit basic behavior
such as `IsActive` returning `True` when a document exists.
Also fix the name of certain functions.
Do not import `DraftFillet` any more as it's just kept
for compatibility purposes.
Do not test OCA nor AirfoilDAT as it's very improbable
that these formats will gain more support any time soon.
Move the docstring, set the frame as a private function,
and set `MakeFace` to `False`.
Use user's home directory to create the file. Move the order of
the parameters of the function.
Since we know how the old class looks like,
we can write code to save the value of the older properties,
and then remove them.
Then we can assign the new class, which will create new properties,
and then we can assign the old values to these.
This can be done for both the proxy object and
for the viewprovider.
Identify the previous object as `DraftFillet.Fillet`
and then use the new proxy class `draftobjects.fillet.Fillet`
and new viewprovider `view_fillet.ViewProviderFillet` on it.
Remove the make function that creates the old object,
its corresponding Gui Command, and the old `DraftFillet.Fillet`
proxy class, which now is a redirection to the new `Fillet`
class defined in `draftobjects.fillet`.
Also change the unit test, and the `draft_test_object` script
to run `Draft.make_fillet`.
In this moment the old fillet tool is `Draft_Fillet`
and the new tool is `Draft_Fillet_new`. They are imported both,
so they can both be tested from the interface.
The original code was in `DraftFillet.py` which is split
into a different modules like the rest of the workbench.
The object code is in `draftobjects`, the viewprovider
is in `draftviewproviders`, and the function to create it
is in `draftmake`.
