Overhaul .gitignore file

[valeriupredoi]

Description

Closes #167

This PR adds both a more inclusive, and a more structured .gitignore. In response to JOSS paper review - and with many thanks!

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Checklist

• This pull request has a descriptive title and labels
• This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• Unit tests have been added (if codecov test fails)
• Any changed dependencies have been added or removed correctly (if need be)
• If you are working on the documentation, please ensure the current build passes
• All tests pass

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.33%. Comparing base (edcc2d0) to head (8cb8467).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #179   +/-   ##
=======================================
  Coverage   77.33%   77.33%           
=======================================
  Files          15       15           
  Lines        2974     2974           
  Branches      477      477           
=======================================
  Hits         2300     2300           
  Misses        555      555           
  Partials      119      119           

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[valeriupredoi]

@kmuehlbauer @davidhassell any of you good folks has a minute to review this, please 🍻

[bnlawrence]

I have no idea how to review this. This seems pretty exhaustive of what a developer might accidentally put inside the repo, but I guess there is an infinity of possibilities here.

Given that I can't see anything we'd want to go through that is being avoided , and there (and if such a thing were to happen, any modern IDE should flag it up, and the gitignore could be updated), and the inverse is true (anything that sneaks in can be removed and gitignore updated), i think this works for me.

[valeriupredoi]

many thanks @bnlawrence for revieweing, and @dostuffthatmatters for the great suggestions! 🍻