Image zones

[camdendotlol]

Summary

• ingests the new zone annotations created by https://github.com/cu-mkp/editioncrafter-cli/pull/22 and displays them in OpenSeaDragon using Annotorious
• refactors some of the pre-existing annotation-handling code to ignore the new tagging annotations
• fixes book mode for documents that don't use the r and v recto/verso suffixes in their facsimile names

This PR also converts the following class components to functional components:

• DiploMatic
• DocumentView
• ImageView
• TranscriptionView

(As a general rule, I'm trying to migrate each component that I touch while working on features - it rarely takes more than a couple minutes.)

Screenshot

Todo

This PR will remain until these tasks are complete:

• [x] "when the user clicks on the box, it should do two things: 1) it should place a corresponding CSS border around the text on the page that has a reference to this zone's ID and 2) It should change the permalink in the address bar to make it now a link to this particular passage by incorporating the zone ID in the URL CGI params (something like zone=zone002)" (Nick)
• [x] book mode is broken again
• [x] enabling the transcription type in TAOS_BAPTISMS causes a crash with an error message complaining about a missing body element - unclear at this point if it's a regression in this branch or an unrelated bug See Nick's comment

[NickLaiacona]

Regarding the third item on your TODO list, this is actually another item on the feature list, which is to handle sourceDoc elements in the layout parsing. Transcription in TAOS_BAPTISMS is a sourceDoc element

[NickLaiacona]

One use case for your list - it should be possible to list more than one zone in a facs attribute string. This is necessary in cases where a paragraph starts on one page and goes to the next, for example. They would be delimited by spaces.