Building data
What the viewer would hand back to Quote Desk. Field names match V22. New fields:
id, position (feet from the left corner of that wall, seen from outside, to the center of the opening), sill (windows), and oneSide (which side is closed when only one is). Openings on a lean use places like R-out, R-front, F-left. Engineering (frame spacing, gauge, legs) and supplier rules are not part of the building; Quote Desk sends them in separately.