Ramesh Polishetti

This PR implements the feature - #69 Updated gotests.

Invoke flogo activity as a rule action

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**Current behavior:** Currently, rule action is a Go function. **Expected behavior:** Able to configure a flogo `activity` as a rule action, so that it gets invoked when the rule fires....

**Current behavior (how does the issue manifest):** As part of the issue #65 discussion, concern has been raised by @mellistibco on the terminology used in the `rules` repository. For example...

**Current behavior:** apiscout currently does not support async APIs **Expected behavior:** As a microservice developer, I push a new ASYNC application into Kubernetes cluster by providing [ASYNC spec](https://github.com/asyncapi/asyncapi) as a...