Add Docker Support and Makefile for Development, Linting, and Fixing

[erseco]

This PR introduces significant improvements to ease the development workflow for the Moodle ExeSCORM plugin. Below are the key changes:

Key Changes:

1. Docker Integration:

   • Added docker-compose.yml to use exelearning-web and alpine-moodle containers for development.
   • The containers are binded to the local directory, ensuring that any changes in the code are reflected immediately in the deployed system.
   • This allows developers to work in an isolated environment that mimics the production setup, enhancing development efficiency and consistency.

2. Makefile:

   • Added a Makefile with multiple commands to streamline common development tasks:
     • up, upd, down, and build for managing Docker containers.
     • install-deps, lint, fix, test, phpmd, and behat commands to easily manage Composer dependencies, linting, fixing, testing, and PHP Mess Detector.
     • help command to display available commands in the Makefile.

3. Code Style Fixes:

   • Automatically fixed several coding style issues using phpcbf according to Moodle’s coding standards.
   • These fixes include handling arrays with short syntax and resolving multiple docblock issues.

4. Removal of PHP 7.1 Support:

   • Removed testing support for PHP 7.1 in CI as it has reached its end of life and is no longer supported.

5. Miscellaneous Fixes:

   • Resolved some lint and pipeline issues.
   • Corrected HTML validation errors and updated PHPDoc tags in various files.

Benefits:

• The new Docker setup simplifies development and ensures consistency across environments.
• The Makefile streamlines the development process, making it easier to manage dependencies, test code, and fix linting issues.
• Code quality has been improved with automated fixes and updated documentation.

[pabloamayab]

Great job!