Security tests

[thalurur]

Issue #, if available:
N/A

Description of changes:

• Created security test to test the behavior of IM with users for different permissions.
• The tests are not exhaustive yet, need to add more cases for transforms/rollups and verifying the actual action run in the policy for managed index
• These tests are not currently run as part of the CI workflow but can be run locally by having a rest endpoint for security enabled cluster ./gradlew :integTest -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername=opensearch -Dsecurity=true -Dhttps=true -Duser=admin -Dpassword=admin --tests "org.opensearch.indexmanagement.SecurityBehaviorIT"

CheckList:

• 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.
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[codecov-commenter]

Codecov Report

Merging #184 (4b66875) into main (5ad90ff) will increase coverage by 0.20%.
The diff coverage is n/a.

❗ Current head 4b66875 differs from pull request most recent head d7bc7d5. Consider uploading reports for the commit d7bc7d5 to get more accurate results

@@             Coverage Diff              @@
##               main     #184      +/-   ##
============================================
+ Coverage     74.48%   74.68%   +0.20%     
- Complexity     1892     1899       +7     
============================================
  Files           260      260              
  Lines         11062    11093      +31     
  Branches       1736     1746      +10     
============================================
+ Hits           8239     8285      +46     
+ Misses         1888     1873      -15     
  Partials        935      935              

Impacted Files	Coverage Δ
...nt/indexstatemanagement/model/destination/Chime.kt	40.90% <0.00%> (-13.64%)	⬇️
...earch/indexmanagement/transform/model/Transform.kt	87.00% <0.00%> (-0.50%)	⬇️
.../opensearch/indexmanagement/rollup/model/Rollup.kt	84.43% <0.00%> (+0.47%)	⬆️
...ndexstatemanagement/IndexStateManagementHistory.kt	78.67% <0.00%> (+1.47%)	⬆️
...dexmanagement/transform/model/TransformMetadata.kt	89.15% <0.00%> (+3.61%)	⬆️
...arch/indexmanagement/rollup/RollupSearchService.kt	64.81% <0.00%> (+5.55%)	⬆️
...action/removepolicy/TransportRemovePolicyAction.kt	61.67% <0.00%> (+10.20%)	⬆️
...ansform/action/explain/ExplainTransformResponse.kt	77.77% <0.00%> (+11.11%)	⬆️
...nt/indexstatemanagement/model/destination/Slack.kt	54.54% <0.00%> (+13.63%)	⬆️
...ndexmanagement/transform/model/ExplainTransform.kt	76.92% <0.00%> (+23.07%)	⬆️

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[bowenlan-amzn]

I have one idea, can this test logic be same as what we are gonna show as an example in our public blog. i.e. could we have a written draft somewhere for an example of how to use this ISM security feature.

[bowenlan-amzn]

Close in favor of #474