batch remaining Islamic mss for submission

[regineheberlein]

We have so far only submitted ~1k Islamic manuscripts that Joyce cataloged. Based on a report that DT ran in Analytics, we have over 10k more that we need to submit to DS.

DS is asking us to batch them in a way that makes each batch as homogeneous as possible. We need to find out whether that is language, format, collection, subjects or what.

Once we've determined the batching, we also need to de-dupe agains the MMSIDs that we've already submitted before proceeding with the submission.

[regineheberlein]

closing in favor of #20