Fix Scripture update events not causing data providers to re-fetch data

[tjcouch-sil]

Update events on C# were being double-serialized. As such, subscribers weren't receiving updates. Additionally, not all relevant data types were announced as updated.

Before, the update looked like this:

Now, the update looks like this:

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This change is 

[lyonsil]

Thanks for fixing this quickly!

Reviewed 2 of 2 files at r1, 2 of 2 files at r2, all commit messages.
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[FoolRunning]

I know you hate doing it, but it would be best if tests were written for this.

Reviewed 1 of 2 files at r1, 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved

[FoolRunning]

Since this is for the tech demo, I'm jut going to approve it.

Reviewable status: complete! all files reviewed, all discussions resolved

[tjcouch-sil]

Scripture update event unit test PR #646