Add Support for Radar Charts

[CBlaisure]

Is your feature request related to a problem? Please describe.

I have a data set where we are trying to relate multiple scaled values to a central data point. Ideally, I would like to use a radar chart (https://vega.github.io/vega/examples/radar-chart/) but we don't have that available in elastic charts today.

Describe the solution you'd like
I would like the option for Radar charts available in Elastic-charts.

Describe alternatives you've considered
The project we are working on will use the vega library above as an alternative but it would be preferable if we could use 1 library for all our charting needs.

Kibana Cross Issues
None.

[the-pixel-hunter]

My specific use case for radar charts is. to show maturity of detections within the SIEM solution and changes over time

[markov00]

Closing this because it's not planned to be resolved in the foreseeable future. It will be tracked in our Icebox and will be re-opened if our priorities change. Feel free to re-open if you think it should be melted sooner.