Added support for long-running operations

Motivation and Context

• Client → Server - CallToolAsyncRequest
• Server → Client - CallToolAsyncResult → AsyncOperation
• Client → Server(Poll) → GetOperationRequest → RequestId
• Server → Client → GetOperationResult → AsyncOperation(status and resourceUri)
• Once status is ACTIVE
  • Client → Server - ReadResourceRequest(resourceUri)

How Has This Been Tested?

Breaking Changes

Non breaking changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context