Update version number, changelog and notebooks for 1.5.2 release

[w-k-jones]

• 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?

[github-actions]

Linting results by Pylint:

Your code has been rated at 8.72/10 (previous run: 8.72/10, +0.00)
_{The linting score is an indicator that reflects how well your code version follows Pylint’s coding standards and quality metrics with respect to the RC_v1.5.x branch.
A decrease usually indicates your new code does not fully meet style guidelines or has potential errors.}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (81ea461) 56.91% compared to head (47bd890) 56.91%.

Additional details and impacted files

@@            Coverage Diff             @@
##           RC_v1.5.x     #381   +/-   ##
==========================================
  Coverage      56.91%   56.91%           
==========================================
  Files             20       20           
  Lines           3440     3440           
==========================================
  Hits            1958     1958           
  Misses          1482     1482           

Flag	Coverage Δ
unittests	56.91% <100.00%> (ø)

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[freemansw1]

Thanks for doing this, @w-k-jones

[JuliaKukulies]

Great, thanks for doing this @w-k-jones! Just add #384 to changelog as well once it is merged.