e.g. if you start test with pytest test_style.py -vv it will be easier to guess why it couldn't find a call
```
E Exception: <class 'abc.Ifc'> was not called with run:
E - {'type': 'SHOULD_BE_CALLED', 'number': None, 'call': {'name': 'run', 'args': ('style.add_surface_style',), 'kwargs': {'style': 'style', 'ifc_class': 'IfcSurfaceStyleShading', 'attributes': 'attributes'}}}
E Unprocessed calls:
E - {'name': 'run', 'args': ('style.add_style',), 'kwargs': {'name': 'name'}}
E - {'name': 'link', 'args': ('element', 'obj'), 'kwargs': {}}
E - {'name': 'run', 'args': ('style.add_surface_style',), 'kwargs': {'style': 'element', 'ifc_class': 'IfcSurfaceStyleShading', 'attributes': 'attributes'}}
```
Changing diffuse color for Blender material now won't change the linked IFC style.
Since now all style parameters for styles are changed through styles UI and users shouldn't use Blender materials tab unless they want to do something advanced (though they are still currently can use it to assign material styles to the specific faces).
PS 1 less thing to sync 🥳
added temporary support for old version with warnings:
WARNING. `spatial.remove_container` api method is deprecated and should be replaced with spatial.unassign_container
WARNING. `product` argument is deprecated for API method "spatial.remove_container" and should be replaced with `products`.
Now it's possible to set in UI active system (currently it's done "select" button next to the system).
Also changed the elements that are going to be decorated with system decorator. Previously it was decorating all the mep elements in the projects which was very performance heavy on large projects.
It works exactly the same as schedules - you add some .svg file, path to it stored in ifc and you can attach it to the sheet.
UI - https://i.imgur.com/tGbCGBb.png
Still need to add some tests for references
Dion Moult
