Provide parameter service tutorial (#1242)

This PR adds a comprehensive tutorial for the ROS 2 parameter service functionality in rclnodejs, providing documentation for dynamic configuration management, parameter validation, and runtime parameter updates.

- Comprehensive tutorial covering ROS 2 parameters from basic usage to advanced features
- Complete code examples demonstrating parameter declaration, validation, and service implementation
- Best practices and CLI usage examples for parameter management

Fix: #1240

Author: minggangw