1. Proposed title of this feature request

Support Apache Artemis Scaling Target for the Custom Metrics Autoscaler

2. What is the nature and description of the request?

Custom Metrics Autoscaler to add support for using the apache Artemis Scalar.

3. Why does the customer need this? (List the business requirements here)

Customer is looking to autoscale pods hosting his Artemis client application. 

4. List any affected packages or components.

KEDA / CMA