feat: implement bulk operations across all libraries and samples

[bhf]

This PR implements the Bulk Operations feature (REST API v1) across all embedded libraries: Java, Python, Rust, and TypeScript.

Key Changes:

• Core Library Update:
  • Added BulkCacheOpsRequest, BulkCacheOpsResponse, CacheOperationRequest, CacheOperationResponse, and BulkOperationType models.
  • Added bulkOps and bulkOpsAsync methods to AeronCacheClient in all languages.
• Java Compatibility: Replaced Lombok dependency with plain POJOs and Builders to ensure compatibility across all environments.
• Integration Tests:
  • Added comprehensive integration tests for bulk operations in Java, Python, Rust, and TypeScript.
  • Verified all tests against a live backend (http://localhost:7070).
• Code Samples:
  • Created new bulk-sample projects for each language.
  • Updated the root samples README.

Verification:

• All unit tests passing.
• All integration tests passing.
• Successful library builds across all ecosystems.