Add basic github workflow

[ingobecker]

For some basic QA, a workflow with the following characteristics should be set up:

• Build a container image
• Build container image for PR if it changed dependencies
• Run all actions in this container
• Check formatting
• Build all binaries for all platforms
• Run tests
• Remove all PR images on PR close event if exist
• Remove previous PR image if a new image image was build
• All actions should also be run easily on a developer system

The workflow should be triggered for every commit on the main branch as well as for PRs.