[ANSIENG-4245] | scram support in kraft (#49)

[mansi-jain-1206]

Description

This PR adds a capability for SCRAM authentication with Kraft Controller. SCRAM authentication 1-pager

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

ZK Kraft oauth-rbac-mds-scram-custom-rhel Migration Migrations are working fine. Only some assertions are failing because of the migrated state.

Checklist:

• [x] Any variable/code changes have been validated to be backwards compatible (doesn't break upgrade)
• [x] I have added tests that prove my fix is effective or that my feature works
• [ ] If required, I have ensured the changes can be discovered by cp-ansible discovery codebase
• [x] My code follows the style guidelines of this project
• [ ] 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
• [ ] Any dependent changes have been merged and published in downstream modules

[confluent-cla-assistant[bot]]

:tada: All Contributor License Agreements have been signed. Ready to merge.
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[mansisinha]

Added some comments, other than those, Please update the molecule scenarios to cover different combinations, the same combination of broker sasl scram and controller sasl plain,scram is added in every scenario. Please add a scenario with kerberos,scram and one with broker also having multiple sasl protocol

[mansisinha]

adding to the above, is zk to kraft migration working for the scram scenarios?

[mansi-jain-1206]

Zk to Kraft migration is working and test for the same has been added.

[mansisinha]

Suggested a couple of minor changes, also please rename the sample inventory files to a more descriptive name, something like inter-broker_scram_kraft.yml and controller-broker_scram_kraft.yaml

[mansi-jain-1206]

scram-rhel after merging mtls changes https://semaphore.ci.confluent.io/workflows/5bd69dd2-4102-4b9a-821c-b0423f572746?pipeline_id=6ee25f66-41c3-46ef-ae81-c23a35344f2d https://semaphore.ci.confluent.io/workflows/e622c929-b80c-4930-acea-4bb2bef85138?pipeline_id=33169db5-9174-44c9-8362-c296b2d8eca9