Create a standard Maven POM-file to build a JAR-file to provide compatibility with bare application server deployments

[MLenterman]

Currently the Dockerfile includes steps to build/package the configuration resources, which from a seperation of concerns viewpoint is not ideal. Traditionally configurations were built/packaged with Maven into a JAR-file, which was then added onto the classpath in some way together with Frank!Framework/WebApp.

It would be great if we could use Maven to build/package the configuration resources and simply copy the resulting JAR-file to the Docker image in the Dockerfile. Frank!Framework Test should cover our use-case for the most part already and could be used as example.

Initial scope for the Maven build/package should be just packaging all the resources into a JAR-file and modifying the Dockerfile to simply copy the resulting JAR-file.