New output writer + Docker update

[svandenhoek]

• New output writer that allows to either write to a file or to stdout.
• Updated Dockerfile to use the new output (and added support for -n & -m in Docker container).

[svandenhoek]

https://github.com/molgenis/vibe/pull/23 should be accepted and merged first.

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
18 Code Smells

No Coverage information
No Duplication information