Add Docker Support with Dockerfile and Docker Compose

[resilientbd]

This pull request addresses Issue #8 by adding Docker support to the project. The following updates have been made:

Dockerfile: Added to define the build and runtime environment for the application. docker-compose.yml: Added to manage the container and map external port 8080 to internal port 8080. Build Configuration: Updated to produce a runnable JAR file compatible with the Docker setup. Screenshots:

Docker Console Output - 1 Docker Console Output - 2 Run Instructions:

Clone the project and navigate to the webrtc-backend directory. Execute docker-compose up -d --build to build and start the Docker container. Note: Docker and Docker Compose must be installed. This setup has been tested on Windows, Linux, and Mac Intel.

This addition will enhance the development environment and streamline deployment processes. Please review and let me know if further changes are required.

Thank you for considering this contribution!

Best regards, Sk. Faisal