What type of PR is this?

What does this do?

Bug Fixes
- Removed obsolete scripts and XML configurations for virtual machine management, streamlining the setup process.
New Features
- Introduced unit tests for file operations, gRPC server functionalities, and acknowledgment mechanisms, enhancing reliability and maintainability.
Documentation
- Updated package documentation to reflect changes in server protocol support.
Refactor
- Simplified logic for reading certificate and key files in the gRPC server implementation.
Tests
- Added comprehensive unit tests for various functionalities, ensuring robust error handling and behavior validation.