Refactor/michaels notes

[macintoshpie]

Formatting Changes

• put constrainedby clause on new line indented (e.g. https://github.com/macintoshpie/modelica-buildings/blob/c2fce7cc11ed217ea7cfa9d1239ed79be8141b16/Buildings/Airflow/Multizone/MediumColumnDynamic.mo#L85)
• put if-then expressions on newlines indented (e.g. https://github.com/macintoshpie/modelica-buildings/blob/c2fce7cc11ed217ea7cfa9d1239ed79be8141b16/Buildings/Airflow/Multizone/BaseClasses/PowerLawResistance.mo#L83)
• put function arguments (named and unnamed) on newlines indented (e.g. https://github.com/macintoshpie/modelica-buildings/blob/format/indent-modifications/Buildings/Fluid/Actuators/Dampers/PressureIndependent.mo#L171)

Design Changes

• indentation is now tracked using a stack, allowing for the notion of "real/rendered" indentations and ignored indentations. This fixes an issue where multiple rules wanted to be indented at once, and the resulting text was overindented.

Unaddressed requests

• "break very long lines" (e.g. https://github.com/macintoshpie/modelica-buildings/blob/format/indent-modifications/Buildings/Airflow/Multizone/MediumColumn.mo#L57)
• putting vector elements on newlines (I believe this would relate to the above, as sometimes we want vectors on a single line, I think) (e.g. https://github.com/macintoshpie/modelica-buildings/blob/format/indent-modifications/Buildings/Examples/VAVReheat/Guideline36.mo#L8)