Streaming data viewer application

[jordens]

Makes sense nowadays to build a web app. Potential tools include:

• https://github.com/wwwtyro/candygraph
• https://github.com/danchitnis/webgl-plot
• Bokeh
• https://elog.psi.ch/scope/
• Others...

The backend should probably:

• receive the data stream
• implement configurable (time base dependent) decimation controlled by the app(s)
• potentially buffer the different decimate levels a bit
• implement configurable triggering
• expose the decimation levels to the web frontend

[ryan-summers]

The Rust backend is being tracked in https://github.com/quartiq/stabilizer-streaming