Feature Request: Consider amenity Tag from osm_buildings_filtered for CTS Assignment

[khelfen]

Description

Currently, the CTS assignment only utilizes osm_points, but it does not take into account the amenity tag from openstreetmap.osm_buildings_filtered. Including this additional data source could improve the accuracy and completeness of the CTS assignment.

Proposed Improvement

• Extend the CTS assignment process to also use the amenity tag from osm_buildings_filtered.
• This would ensure that relevant building-related amenities are incorporated into the classification.
• It's probably easiest to adapt the cts_buildings function

Benefits

• More comprehensive assignment of CTS categories.
• Better representation of building-specific information.
• Potential improvement in data accuracy and usability.

[nesnoj]

Yes, this is important.
You opened in eGon-data but the (somewhat related) HH fixes took place in powerd: openego#358
Does it make sense to fix it here?