Filtering and grouping of speckle objects

[fabianlinkflink]

Right now we are just grabbing the categories from data.category and data.type, which works well for standard projects from Revit and modified Rhino projects. But it would be nice to be able to group and filter the objects on any speckle parameter that is relevant for the project.

This is a bigger task to solve this but somehow making a filtering system that you can use to chose how to group mapping into groups with subgroups. Maybe even so that you can have a deeper nested structure with subgroupings having additional subgroups.

Sketches are on a first draft of such a system, but it should be further explored what makes sense to do here.