Reuse TSVB chart components in Monitoring charts

[elasticmachine]

Original comment by @ycombinator:

I was chatting with @tsullivan yesterday about making some improvements to the Monitoring charts to aid LINK REDACTED. We realized pretty quickly that the improvements we wanted were already implemented in TSVB chart components.

Since the Monitoring charts are a fork of (older) TSVB charts, it probably just makes sense to reuse the (current) TSVB charts in Monitoring. This way users get some consistency and we don't have two slowly diverging codebases both implementing time series chart components.

/cc @pickypg @simianhacker

[tsullivan]

I'll close this as it's not how we need to track updating any of the charts. There is a new chart library under development and they'll roll out the chart to all the apps in their own timeline.