Row delta supports addition, delete, non-contiguous updates

[sc1f]

This PR fixes my previous implementation of calculating updated row indices:

• 0-sided contexts save changed primary keys to a set, and when get_row_delta is called, transforms the primary keys to row indices and returns the changed rows.
• get_row_delta no longer supports the bidx and eidx options, and will return deltas for all rows on default.
• get_row_delta in the View C++ class transforms the hopscotch set into a vector for interoperability with Emscripten and Javascript.
• New tests have been added for row delta that test row addition, deletion, and non-contiguous updates.
• Fix prettify errors in benchmark suite, and replace localhost URL with the Docker host URL.