Create Dockerfile for Kronos

Docker has 3 kronos services, one for all, one for readonly, one for collector. When docker is run, all three are started. Three ports are mapped. The log directory is mapped to `/var/log/kronos`. Settings file at `/etc/kronos/settings.py` is mapped into the docker.
similarly, don't delete uwsgi.ini copying for normal runs of this script.

in the dockerfile, include a COPY command to copy uwsgi.ini into the appropriate location