switch a lot of int runtime parameters to bool

[zingale]

this will help make the runtime parameters structs take up less space note: there are some cases where boolean-like ints were defaulting to -1, which should be interpreted as true

PR summary

PR motivation

PR checklist

• [ ] test suite needs to be run on this PR
• [ ] this PR will change answers in the test suite to more than roundoff level
• [ ] all newly-added functions have docstrings as per the coding conventions
• [ ] the CHANGES file has been updated, if appropriate
• [ ] if appropriate, this change is described in the docs

[zingale]

regression tests pass: http://groot.astro.sunysb.edu/Castro/test-suite/gfortran/2024-05-01-001/index.html