Add easygui to Dockerfile
Add easygui to Dockerfile

jamesfolberth/jupyterhub_AWS_deployment,jamesfolberth/jupyterhub_AWS_deployment,jamesfolberth/jupyterhub_AWS_deployment,jamesfolberth/NGC_STEM_camp_AWS,jamesfolberth/NGC_STEM_camp_AWS,jamesfolberth/jupyterhub_AWS_deployment