add dicom version of docker compose file

For folks who want to use the QIDW development environment while developing the dicom_viewer plugin.

Just clone a copy of girder side-by-side with the copy of qidw_plugin, switch the docker-compose-with-dicom.yml file with docker-compose.yml (or use the -f option to docker-compose), and that's it; you should be able to make changes to the dicom_viewer plugin under your cloned copy of girder and they will be automatically incorporated into the QIDW development environment.