Add new categories for BIM (building-information-modelling)

[drashevski]

Hi there! I saw that there's no category for BIM software, so I'd like to propose adding it.

The closest to a BIM software is currently the "cad" category, even though BIM includes structured semantics, object properties, relationships, federation and lifecycle information beyond geometric CAD. There is also the notion of model-based collaboration, so BIM software is more actively used for collaboration than a typical CAD software. It's a typical category from the AEC industry (architecture, engineering and construction). Here's the wikipedia about it: https://en.wikipedia.org/wiki/Building_information_modeling

I'm open for alternative suggestions.