[FEATURE] Ability to select $.send.emit'd events from the workflow builder

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

When using `$.send.emit` to emit events from one workflow to another, it's not possible to select those emitted events in the receiving workflow's builder.

The only time events are acted on are when the workflow is in production.

We'd like to be able to select and test these events in the normal workflow builder experience.

**Describe the solution you'd like**

We'd like to be able to select and test these events in the normal workflow builder experience.

**Do you have a workaround?**

The only way to interace with these events are when the receiving workflow is deployed to production.

**Comparable features in other tools?**

No, but every other event is supported in the workflow builder.