Add new option to list pixels in getUsedFiles

[dgault]

This is a follow up to #41

As discussed, having an option to toggle if the chunk list is returned was the preffered approach. This PR reproduces the functionality of the previous noPixels effort, but also adds a new option (which can be set on MetadataOptions). The initial default is set to false, so no pixels files will be returned by default. This is for initial testing purposes and can be updated at a later date

[joshmoore]

Thanks, @dgault! @will-moore, let us know how this works for you.

[will-moore]

@joshmoore Currently documenting progress and questions at IDR/omero-mkngff#2

[will-moore]

Updating on pilot-idr0125

$ sudo -u omero-server -s
$ wget https://merge-ci.openmicroscopy.org/jenkins/job/BIOFORMATS-build/default/lastSuccessfulBuild/artifact/bio-formats-build/ZarrReader/target/OMEZarrReader-0.3.2-SNAPSHOT-jar-with-dependencies.jar

$ mv OMEZarrReader-0.3.2-SNAPSHOT-jar-with-dependencies.jar OMEZarrReader.jar
$ rm /opt/omero/server/OMERO.server/lib/client/OMEZarrReader.jar
$ cp OMEZarrReader.jar /opt/omero/server/OMERO.server/lib/client/
$ rm /opt/omero/server/OMERO.server/lib/server/OMEZarrReader.jar
$ cp OMEZarrReader.jar /opt/omero/server/OMERO.server/lib/server/

$ sudo service omero-server restart
Redirecting to /bin/systemctl restart omero-server.service

[dgault]

Closing as option was not needed

[will-moore]

This PR was needed at IDR/idr-utils#56 (comment) to fix SecurityViolations