[Lens] Enable custom prefix and suffix for Y axis range values

[bradquarry]

Today in Time Series Visual Builder you can add custom fixed values to the Y axis range values of a chart. This allows dashboard chart data to be more relatable. Lots of customers use this all over dashboards today and I'm sure would like to see it in lens. I have attached screenshots showing how TSVB annotated the negative values of the Y axis using a data formatter panel and adding {{value}} dBM.

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[wylieconlon]

More general issue for doing this across Kibana: #8984

[ghudgins]

+1

This is great, however i’d love a way to replace the unit being used in Lens via formula. I have a bytes field that is actually bps but len forces me to use MB instead of Mbps.

[ghudgins]

a big +1 from a metrics customer

this is the most important wish on our list of enhancements

[flash1293]

This can use the existing suffix formatter:

kibana/x-pack/plugins/lens/common/suffix_formatter/index.ts

Line 34 in 6d874ca

return class SuffixFormatter extends FieldFormat {