Adding checklists for the issue tracker

[fziegner]

This PR addresses #174 by adding templates for the issue tracker. I checked how projects like pandas and numpy manage this which mostly is in the form of interactive forms using YAML. These don't allow editing the issue while creating it so I opted to use Markdown in the style of the pull request template.

I created a repository here so you can check out how the templates look like in action. Is this what you had in mind @freemansw1? Unfortunately, Markdown doesn't support variables so you'd still have to manually replace the version number in the release template.

• Have you followed our guidelines in CONTRIBUTING.md?
• Have you self-reviewed your code and corrected any misspellings?
• Have you written documentation that is easy to understand?
• Have you written descriptive commit messages?
• Have you added NumPy docstrings for newly added functions?
• Have you formatted your code using black?
• If you have introduced a new functionality, have you added adequate unit tests?
• Have all tests passed in your local clone?
• If you have introduced a new functionality, have you added an example notebook?
• Have you kept your pull request small and limited so that it is easy to review?
• Have the newest changes from this branch been merged?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f87ea1e) 55.75% compared to head (17392d0) 56.79%.
Report is 127 commits behind head on RC_v1.5.x.

Additional details and impacted files

@@              Coverage Diff              @@
##           RC_v1.5.x     #358      +/-   ##
=============================================
+ Coverage      55.75%   56.79%   +1.03%     
=============================================
  Files             15       20       +5     
  Lines           3316     3435     +119     
=============================================
+ Hits            1849     1951     +102     
- Misses          1467     1484      +17     

Flag	Coverage Δ
unittests	56.79% <ø> (+1.03%)	⬆️

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[freemansw1]

Thanks for taking this on, @fziegner . This is indeed what I had in mind. I've made a small comment, but I think this is overall ready to be moved out of draft.

[w-k-jones]

Looks good, thanks for adding this! We can always add more templates in future (e.g. a feature request template), but I think it's best to add these straight away

[fziegner]

Thanks for the reviews. I'll remove the draft status then.

[freemansw1]

The notebook CI is failing, but it was also doing so before this PR. I've opened a new issue for that (#370). @fziegner are you happy for us to go ahead and merge this?

[w-k-jones]

I'm happy to merge as well, as the Jupyter CI issue has nothing to do with this PR

[fziegner]

Yes @freemansw1, no objections from me.