jre

Creation of a docker container providing jre21.

Creation of a docker container providing jdk17.

This is mirrored to https://gitlab.com/sw4j-net/jdk17

Creation of a docker container providing jre8.

This is mirrored to https://gitlab.com/sw4j-net/jre8

Creation of a docker container providing jre11.

This is mirrored to https://gitlab.com/sw4j-net/jre11