Plotting statistical metrics

[alaws-USGS]

In HydroInspector, there are a number of datasets that have had their streamflow performance present that can be compared and visualized. There are currently two available for this app (and more to be added):

NHM V1 standard suite results
NWMR V2.1 standard suite results

• Reading these datasets in using pysciencebase if possible. Otherwise, download datasets and put them on OSN with help from Amelia.
• Allow functionality for them to be visualized on the map. Think about joining with streamgages dataset or should we do some sort of other ETL?
• Add an additional tab to the template and add to the tab:
  • Graph comparing median daily mean streamflow values over time between each selected dataset and the base streamflow dataset using pygeohydro and NWIS (issue 480)