RANGER-5312: add authz-embedded module

[mneethiraj]

What changes were proposed in this pull request?

Added authz-embedded module implementation

How was this patch tested?

added unit tests

[Copilot]

Pull Request Overview

This PR adds a new "authz-embedded" module to Apache Ranger, providing an embedded authorization framework that allows applications to perform authorization using Ranger policies without requiring a separate Ranger admin service. The implementation includes configuration management, authorization plugins, error handling, and comprehensive test coverage.

• Adds embedded authorization module with RangerEmbeddedAuthorizer as the main entry point
• Implements policy source handlers for resource-based and local folder-based policy retrieval
• Provides comprehensive test suite with S3 authorization scenarios

Reviewed Changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pom.xml	Adds authz-embedded module to build configuration
authz-embedded/pom.xml	Maven configuration for the new module with required dependencies
authz-embedded/src/main/java/*	Core implementation classes for embedded authorization
authz-embedded/src/test/java/*	Unit tests and policy source implementations
authz-embedded/src/test/resources/*	Test data including S3 policies, roles, tags, and authorization test cases
authz-embedded/src/conf/*	Configuration template for embedded authorization

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