Use output from profiler for dataset summaries

[okennedy]

Current behavior: On a ~300 record dataset, the histograms in the new dataset view show a count of 10. Courtesy of @ChristopherHong2019 :

This is a bit confusing

Desired behavior: One of

1. Show fractional or percentage numbers on the histogram's y axis
2. Make it clear that these numbers are the result of sampling (if applicable)
3. Rescale the numbers on the histogram's y axis to the actual data size

[okennedy]

A correction here: the histograms are built over the data being shown. This is less than ideal.

Now that #236 is merged in, we should have Mimir compute the relevant properties, store them in Vizier, and update the display accordingly.

If properties are not displayed, this display should be hidden.

[okennedy]

Between UBOdin/mimir-api#21 , VizierDB/web-api-async#99 , UBOdin/mimir-api#22 , and a pending PR from @maqzi for the web-ui, this issue should be resolved.