public File createDockerBuildArchive(ImageConfiguration imageConfig, MojoParameters params)
            throws MojoExecutionException {
        return createDockerBuildArchive(imageConfig, params, null);
    }
Create the tar file container the source for building an image. This tar can be used directly for
uploading to a Docker daemon for creating the image

@param imageConfig the image configuration
@param params mojo params for the project
@return file for holding the sources
@throws MojoExecutionException if during creation of the tar an error occurs.
src/main/java/io/fabric8/maven/docker/service/ArchiveService.java