Further disaggregate timeseries airflows

Currently timeseries airflows are provided for:
- Infiltration
- Mechanical Ventilation
- Natural Ventilation
- Whole House Fan

Mechanical Ventilation can include:
- Whole-home mechanical ventilation
- Bathroom and range hood ventilation
- Clothes dryer venting
- HPWH exhaust ducting
- ???

Should we further disaggregate any of these?