Renamed non-inclusive language

[davidlago]

Signed-off-by: Dave Lago [email protected]

opensearch-security pull request intake form

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1. Category: (Enhancement, New feature, Bug fix, Test fix, Refactoring, Maintenance, Documentation)
   Refactoring

2. Github Issue # or road-map entry, if available:
   Change the "Blacklist / Whitelist" nomenclature OpenSearch#1483

3. Description of changes:
   Update references to whitelist with allowlist

4. Why these changes are required?
   To be better humans

5. What is the old behavior before changes and new behavior after changes? (Please add any example/logs/screen-shot if available)

6. Testing done: (Please provide details of testing done: Unit testing, integration testing and manual testing)

7. TO-DOs, if any: (Please describe pending items and provide Github issues# for each of them)

8. Is it backport from main branch? (If yes, please add backport PR # and commits #)

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[davidlago]

WIP, need to make it backwards compatible by still accepting old nomenclature

[cliu123]

The following renaming changes would break backward compatibility.

1. whitelist.yml -> allowlist.yml
2. CType.WHITELIST -> CType.ALLOWLIST
3. API endpoint \whitelist -> \allowlist