Addition of the cumulative sum tally modifier

[mcampos16]

Description

This pull request includes the addition of the tally modifier cumulative_sum. As a part of this addition:

• The cumulative_sum function includes the option to pass the name of the column to be used for the cumulative sum, but default if 'Value'.
• The test test_cumulative_sum was implemented in test_manipulate_tally.py. The function is tested both by using the default 'Value' column and a "custom" column name.
• The tally modifier's name and description was added to JADE's documentation.

No additional dependencies were introduced.

Type of change

Please select what type of change this is.

• Bug fix (non-breaking change which fixes an issue)
• New benchmark
  • Non-breaking change which entirely uses existing classes, structure etc
  • Breaking change which has implemented new/modified classes etc
• New feature
  • Non-breaking change which adds functionality
  • Breaking change fix or feature that would cause existing functionality to not work as expected

Other changes

• This change requires a documentation update
• (If Benchmark) This requires additional data that can be obtained from:
  • Benchmark data 1
  • Benchmark data 2

Testing

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Run all the test functions currently available in the tests folder.
• Added test_cumulative_sum in test_manipulate_tally.py to check the correct operation of the newly added tally modifier.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• General testing
  • New and existing unit tests pass locally with my changes
  • Coverage is >80%

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
src/jade/config/raw_config.py	100.00% <100.00%> (ø)
src/jade/post/manipulate_tally.py	95.90% <100.00%> (+0.07%)	⬆️

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[dodu94]

Perfect, thank you Marta. @alexvalentine94 I'll tag you here for info but the PR is quite simple, no need for double review