feat: add DataObjectGroup on all [Binary|Physical]DataObject descendents of DataObjectPackage.

Use <rng:zeroOrMore/rng:choice> grouping all [Binary|Physical]DataObjects to avoid the problem
if [Binary|Physical]DataObject order (closes #35)

--HG--
branch : seda21
4 jobs for topic/seda21/zero in 4 minutes and 48 seconds (queued for 5 seconds)
Status Name Job ID Coverage
  Lint
passed check-manifest #459603
lint check-manifest

00:00:35

passed flake8 #459602
lint flake8

00:00:19

 
  Tests
failed py3 #459604
tests py3

00:04:12

 
  Build Debian Package
skipped build-debian #459605
debian manual
 
Name Stage Failure
failed
py3 Tests
Uploading artifacts for failed job
Uploading artifacts...
py3-deprecated-warnings.json: found 1 matching files and directories

Uploading artifacts as "archive" to coordinator... ok
id=459604 responseStatus=201 Created token=bKXS13pa
Uploading artifacts...
report.xml: found 1 matching files and directories

Uploading artifacts as "junit" to coordinator... ok
id=459604 responseStatus=201 Created token=bKXS13pa
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1