Is your feature request related to a problem? Please describe.
Multiple charts can share the same vertical cursor when they have the same x axis.

Describe the solution you'd like
We need to add two props like the following to the chart:

• onExternalCursorChange that is populated with the value from an external cursor
• onCursorChange that accept a listener and is called when the cursor change it's position

Describe alternatives you've considered
n/a

Additional context
n/a

Kibana Cross Issues
Add any Kibana related issues/feature requests here.

Checklist

• this request is checked against already exist requests
• every related Kibana issue is listed under Kibana Cross Issues list
• kibana cross issue tag is associated to the issue if any kibana cross issue is present