software/cloudooo/test: snapshot test an odg to png conversion

So that we can see when something changes.
4 jobs for feat/cloudooo-snapshot-test in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-TestRunner1.Python2

00:14:13

passed SlapOS.Eggs.UnitTest-TestRunner1.Python3

00:15:10

passed SlapOS.SoftwareReleases.IntegrationTest-TestRunner1

46:35:09

passed SlapOS.SoftwareReleases.IntegrationTest-TestRunner1

06:05:11