Release Event Hubs April 2020 update for JavaScript

[ramya-rao-a]

This is a parent issue tracking the work planned for Event Hubs for the April update.
Code complete date: April 3rd, 2020

API design

• In Progress Propose smarter send APIs such that the user doesnt have to one by one fill the EventDataBatch to be able to send events
• In Progress Propose API to control greedy claiming of partitions by the Event Processor

Features

• Code sample showing how to convert IotHub connection string to an Event Hubs compatible one which points to the built-in Event Hubs endpoint
• Code sample showing workaround needed for Event Hubs in Azure Stack
• In Progress Receiver Redirect feature
• In Progress Review current logging experience, come up with a plan to streamline and be consistent across languages for ease of customer support, tackle low hanging fruits

cc @chradek, @richardpark-msft

[ramya-rao-a]

The code sample work listed above are done.
v5.1.0 of @azure/event-hubs is released with the feature described in #7801

Rest of the work has been moved to the May milestone