Unified entry point for models and parameter sets

[santacodes]

Description

Modified the existing parameter_sets API and unified entry points to accommodate model entry points. This is an extension of the existing model entry points in the pybamm-cookie project. Relevant discussion.

Fixes # (issue)

Type of change

Please add a line in the relevant section of CHANGELOG.md to document the change (include PR #) - note reverse order of PR #s. If necessary, also add to the list of breaking changes.

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ pre-commit run (or $ nox -s pre-commit) (see CONTRIBUTING.md for how to set this up to run automatically when committing locally, in just two lines of code)
• All tests pass: $ python run-tests.py --all (or $ nox -s tests)
• The documentation builds: $ python run-tests.py --doctest (or $ nox -s doctests)

You can run integration tests, unit tests, and doctests together at once, using $ python run-tests.py --quick (or $ nox -s quick).

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.10%. Comparing base (56450f8) to head (6b05386).
⚠️ Report is 176 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4490   +/-   ##
========================================
  Coverage    99.10%   99.10%           
========================================
  Files          306      307    +1     
  Lines        23671    23686   +15     
========================================
+ Hits         23458    23473   +15     
  Misses         213      213           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[arjxn-py]

Good start @santacodes, looks like this is still a WIP? Still I have commented just a tip hoping it'd make sense.

There are some conflicts that you may want to resolve and also feel free to add [WIP] prefix to your PR title while you're on it.

[review-notebook-app]

Check out this pull request on 

See visual diffs & provide feedback on Jupyter Notebooks.

---

Powered by ReviewNB

[kratman]

@santacodes Are you still working on this?

[santacodes]

@santacodes Are you still working on this?

Yes I am, it has yet to be reviewed, I will update this branch and request a review again.

[Saransh-cpp]

Still shows "Merging is blocked" :(

I think it needs an approval from @kratman and @valentinsulzer as they have requested changes above.

Changes made