Figure out a way to conditionally advance sections when one interview uses multiple sub-interview YAML files

[nonprofittechy]

Right now, we just call nav.set_section() and nav.set_progress() but this may not be right if it's part of a larger interview.

[nonprofittechy]

Here's an example solution: https://github.com/nonprofittechy/docassemble-HousingCodeChecklist/blob/9e710a6064c3f0926f6e07f594401ec928dc5dd7/docassemble/HousingCodeChecklist/data/questions/housing_code_interview.yml#L144

[nonprofittechy]

My thought is to have a dictionary or other data structure that lists the sections and has rules for when they are turned on, so it is more declarative. Much like ALDocumentBundle declaratively enables documents based on conditional rules.

This only matters if we start making better use of navigation sections.

[nonprofittechy]

Partially redundant with #731 , closing w/ option to revisit at some future date