This does a number of things:

• Add Dockerfiles to allow Docker containers to be built for testing, development and production purposes - easier than having to install and configure Apache and set up the app!
• Add configuration files for Visual Studio Code to do some automated code checking when files are saved, as well as to locally build and run a Docker container for testing
• Edit config.default.php to allow overriding configuration with environment variables (which is the standard way of setting up simple configuration in Docker containers)
• Add logging output to index.php to make it easier to see what's going on (and disable Apache's access logging in the Docker container so it doesn't spam up the log)

Additionally:

• Add GitHub workflows for the following tasks:
  • automatically run code checks on pushes and PRs
  • build and upload Docker images to GitHub Container Registry when a new tag is pushed to the master branch
• Make the title ID parser case-insensitive - if you have some files where the title IDs are lower-case, or mixed-case, or the base game and updates have different capitalisation, the indexer will now correctly identify and associate them!
• Fix Some TitleID will crash the program #10 - there are games that don't have values in some of the fields in titles.json or versions.json (e.g. 0100696014F4A000 or 0100E2F014F46000). This would cause the indexer to crash when trying to parse the release date field; now these cases are handled gracefully and parsed sensibly, and the indexer logs a warning about the missing data in the Tinfoil databases!