This is an example of streaming IEX financial data into the perspective viewer. Active 9:30 am to 4:00 pm EST.
forked from timkpaine's block: Perspective Streaming Example
https://unpkg.com/@jpmorganchase/perspective/build/perspective.js
https://unpkg.com/@jpmorganchase/perspective-viewer/build/perspective.view.js
https://unpkg.com/@jpmorganchase/perspective-viewer-hypergrid/build/hypergrid.plugin.js
https://unpkg.com/@jpmorganchase/perspective-viewer-highcharts/build/highcharts.plugin.js