HDDS-12454. Create new module for multitenancy with Ranger

[adoroszlai]

What changes were proposed in this pull request?

Move Ranger-specific multitenancy implementation out of Ozone Manager to a new module, which is added to OM's classpath at runtime.

https://issues.apache.org/jira/browse/HDDS-12454

How was this patch tested?

Existing multi-tenancy tests.

CI:
https://github.com/adoroszlai/ozone/actions/runs/16260068242

[adoroszlai]

@smengcl can you please take a look?

[smengcl]

Sorry for being very late to review this one. This flew under my radar. Let me take a look.

[Copilot]

Pull Request Overview

This PR extracts the Ranger-specific multitenancy implementation from the Ozone Manager module into a new dedicated module ozone-multitenancy-ranger. This separation allows the Ranger dependencies to be loaded at runtime rather than being directly bundled with the core Ozone Manager.

• Create new ozone-multitenancy-ranger module with Ranger dependencies
• Remove Ranger dependencies from ozone-manager module
• Update dependency management and exclusions across affected modules

Reviewed Changes

Copilot reviewed 10 out of 15 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pom.xml	Add dependency management for new multitenancy-ranger module
hadoop-ozone/pom.xml	Include new multitenancy-ranger module in build
hadoop-ozone/ozone-manager/pom.xml	Remove Ranger dependencies that moved to new module
hadoop-ozone/multitenancy-ranger/pom.xml	New module POM with Ranger dependencies and exclusions
hadoop-ozone/multitenancy-ranger/src/main/java/org/apache/hadoop/ozone/om/multitenant/RangerClientMultiTenantAccessController.java	Replace Guava Preconditions with Java Objects for null checks
hadoop-ozone/multitenancy-ranger/src/main/java/org/apache/hadoop/ozone/om/multitenant/package-info.java	Add package documentation for new module
hadoop-ozone/multitenancy-ranger/dev-support/findbugsExcludeFile.xml	SpotBugs configuration for new module
hadoop-ozone/recon/pom.xml	Remove Jersey exclusions no longer needed
hadoop-ozone/integration-test/pom.xml	Add test dependency on new multitenancy-ranger module
hadoop-ozone/integration-test-recon/pom.xml	Remove Jersey exclusions no longer needed

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[smengcl]

lgtm. Thanks @adoroszlai for the refactoring effort!

[adoroszlai]

Thanks @smengcl for the review and merging master into the PR. +1 for triggering CI on outdated PR.