Cluster tools

[AndreKurait]

Description

Creates library cluster_tools for an easy to extend library of tools around opensearch business logic for migrations.

Ships with tools: create_index, change_shards, enable/disable_compatibility_mode

Was getting some codecov failures, added retry akin to security repo

• Category: New feature
• Why these changes are required? Provide an easy-to-extend library of adhoc cluster manipulations
• What is the old behavior before changes and new behavior after changes? Library didn't exist

Issues Resolved

https://opensearch.atlassian.net/browse/MIGRATIONS-2201

Is this a backport? If so, please add backport PR # and/or commits #

Testing

Unit testing and some manual testing

Check List

• [x] New functionality includes testing
  • [x] All tests pass, including unit test, integration test and doctest
• [x] New functionality has been documented
• [x] Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 86.50000% with 27 lines in your changes missing coverage. Please review.

Project coverage is 80.63%. Comparing base (48da9ce) to head (be19bc3). Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
...onConsole/cluster_tools/src/cluster_tools/utils.py	61.76%	13 Missing :warning:
...ionConsole/cluster_tools/src/cluster_tools/main.py	82.60%	12 Missing :warning:
...onConsole/cluster_tools/src/tools/change_shards.py	96.22%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1124 +/- ## ============================================ + Coverage 80.51% 80.63% +0.12% - Complexity 2871 2910 +39 ============================================ Files 393 399 +6 Lines 14554 14829 +275 Branches 1000 1007 +7 ============================================ + Hits 11718 11958 +240 - Misses 2229 2260 +31 - Partials 607 611 +4 ``` | [Flag](https://app.codecov.io/gh/opensearch-project/opensearch-migrations/pull/1124/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | Coverage Δ | | |---|---|---| | [gradle-test](https://app.codecov.io/gh/opensearch-project/opensearch-migrations/pull/1124/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `78.66% <ø> (+0.06%)` | :arrow_up: | | [python-test](https://app.codecov.io/gh/opensearch-project/opensearch-migrations/pull/1124/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project) | `89.75% <86.50%> (-0.59%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=opensearch-project#carryforward-flags-in-the-pull-request-comment) to find out more.

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