Release v1.0.0

feat: Add DirectPortForward-Go - a high-performance TCP port forwarder

- Implement main functionality for TCP port forwarding with configurable options.
- Introduce JSON-based configuration for local and remote addresses, connection limits, timeouts, and logging levels.
- Add built-in metrics for monitoring active connections, total connections, and data transfer statistics.
- Implement graceful shutdown handling and resource management to prevent leaks.
- Create README.md with detailed usage instructions, configuration examples, and performance tips.