Add reference handler for Annotation -> Annotation

[melissalinkert]

See #9541.

[qidane]

Hi Melissa, I have been given this to test but have no idea how to. I did make the changes to the sample file #352 so it can be used for tagset testing.

[melissalinkert]

@qidane You just need to verify that the file from PR #352 imports without error and has the tagset shown in Insight if you checkout the branch for this PR and have the branch from this other PR:

ome/bioformats#139

checked out in the bioformats submodule. Whichever server you're running against also needs to have this branch, though, so just be careful of that.

[qidane]

Thanks to help from Roger & Josh I got howe updated to be my test server. The file imports without error, but does not appear inside the dataset. (Probably an unrelated issue?)

If you find the image through the calendar it does have the tagset correctly linked. And the tagset is visible in the tag view and contains the two correct tags.

[melissalinkert]

Orphaned OME-XML files are certainly a known issue (I reported it on the sprint 4 spreadsheet, and @sbesson reported it on the sprint 5 spreadsheet), and not related to this.

[qidane]

merge