MAINT: rename filter to filter_by_identity

Summary

Rename the filter function to prevent confusion that it does not behave like standard filter functions

Test Environment

pipelines

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
  • How do I use the software? Assume "stupid" users.
  • How do I develop or debug the software? Assume novice developers.
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• Appropriate user and developer documentation (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

assigned to @henrik

added 6 commits

• dbeef18c...75531f1c - 4 commits from branch dev
• 334c5113 - Merge branch 'dev' into f-rename-filter
• 8dc09b2e - MAINT: rename the filter function of Container

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added 1 commit

• e0554c5e - MAINT: rename the filter function of Container

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mentioned in issue #218 (closed)

marked the checklist item All automated tests pass as completed

marked the checklist item Reference related issues as completed

marked the checklist item Up-to-date CHANGELOG.md (or not necessary) as completed

marked the checklist item Up-to-date JSON schema (or not necessary) as completed

marked the checklist item Appropriate user and developer documentation (or not necessary) as completed

marked the checklist item Annotations in code (Gitlab comments) as completed

added 1 commit

• 71f51dd3 - TST: add unittest for deprecation warning

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resolved all threads

changed the description

requested review from @salexan

added 20 commits

• 71f51dd3...600505d1 - 19 commits from branch dev
• 6e6c050f - Merge branch 'dev' into 'f-rename-filter'

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marked the checklist item I understand the intent of this MR as completed

marked the checklist item Up-to-date CHANGELOG.md (or not necessary) as completed

marked the checklist item Appropriate user and developer documentation (or not necessary) as completed