Add base docker configs

[akiszka-yf]

This commit contains the configuration required for running YetiForce as a containerized application.

It aims to:

1. introduce container separation - split the previous single container to a set
2. save application data in separate volumes - avoid issues with configuration disappearing when containers are recreated
3. provide easier backupability
4. add caching in Dockerfile to speed up subsequent container builds

Installation and testing

For now, testing is manual. Try to run YF using Docker on your machine and check for possible errors.

To run dockerized YF:

1. Install Docker Desktop.
2. Add a line with 127.0.0.1 yeti to /etc/hosts on Unix or C:\Windows\System32\drivers\etc\hosts on Windows.
3. Download the YetiForce code: git submodule update --init.
4. Run docker compose up -d in the repository.
5. Go to https://yeti and ignore the security warning.
6. Install YF normally, for database details enter:

   Address: db
   Port: 3306
   Username: yeti
   Password: yeti
   Database name: yetiforce
   

7. If you make any code changes, the following command will rebuild and restart the container: docker compose up -d --build.

[sonatype-lift]

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[akiszka-yf]

I added commits abaa2bf-a9da462 to address issues outlined here.

[rskrzypczak]

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