[WIP] Burgwar Docker image - Xmake compatible version

[Elanis]

This is the first working version of Docker image.

How to test it ?

• git clone the folder
• Build image with docker build --tag burgwar-server:latest .
• Run server:

docker run -ti --rm --name=burgwar-server -p 14768:14768/udp \
 -v /relativeOrAbsolute/path/to/assets:/srv/assets/ \
 -v /relativeOrAbsolute/path/to/mods:/srv/mods/ \
 -v /relativeOrAbsolute/path/to/scripts:/srv/scripts/ \
 -v /absolute/path/to/serverconfig.lua:/srv/serverconfig.lua \
 burgwar-server:latest

Warning: If you are using Docker Desktop on Windows, you should execute this command under a WSL console. Executing with Git bash for example won't work.

TO DO before merge

• use /home/burgwar instead of /home/burgwar/BurgWar
• use default xmake.lua
• Only keep artifacts to make a light image
• Set server path in runtime image to /srv/
• stop using git clone and use local repo ?

Next steps

• Use alpine linux instead of debian for runtime image ([FEATURE] Use alpine linux instead of debian for runtime image of Docker image #65)
• CI ([FEATURE] Use Github actions to build and publish BurgWar server docker Image do Docker Hub #67)
• remove nazara legacy apt when we migrated ([FEATURE] Remove Nazara Legacy apt install/apk add from Dockerfile when we migrated to Nazara Next #66)

[CLAassistant]

All committers have signed the CLA.

[SirLynix]

Thanks!