python-library

This is suggested in Gitter chat (Russian room). We have such method for uia_controls.MenuWrapper. But some menus are implemented as toolbar with drop-down submenus. It makes sense to add similar methods to choose such submenu items.

The use of the property built-in as a function does not allow for
the same type annotations as using property as a decorator.

This change should not affect runtime behaviour, but I added tests to
cover all properties that were changed to decorators explicitly just to
make sure they work as they should.

There are still other places where the property built-in is used as a
function b

In las file format, vlrs info is crucial to correctly describe point's spatial location.
However, if you try to use pyntcloud.las_header.vlrs, you wouldn't get anything, the value is alway none.

Through your source code, I can see you try to use
data["las_header"] = las.header
But it can not pass vlrs or evlrs info into new object, because in laspy, vlrs info is dynamically obtained afterw