[ftr] Action to build docker image and deploy to Dockerhub

[daniel-jettka]

Is your feature request related to a problem? Please describe.
The build should be available on DockerHub.

Describe the solution you'd like
Implement Dockerfile for building, set up an action to push Docker image to Dockerhub

Additional context
Edirom/Edirom-Online#642

[daniel-jettka]

9efa66c