Enable bindings generation via Binder#1

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everyday847 wants to merge 4 commits intomasterfrom

Commits on Jan 20, 2021

REVI, stochastic sampling
Hannah Wayment-Steele
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Commits on Feb 12, 2021

OK. Here is a significant code reorganization to permit bindings generation
everyday847
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Remove score_prediction, a binary, and add to .gitignore
everyday847
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Ah, of course, forgot to add the new source files (formerly .ipp)
everyday847
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