Workflow Resource Template

[VaibhavPage]

Is this a BUG REPORT or FEATURE REQUEST?: FEATURE REQUEST

What happened:
The Addon CR expects the Workflow template to be a string which leads to unnecessary confusion because it is difficult to debug issues related to resource indentation in the YAML string.

What you expected to happen:
Provide an option to define actual Workflow resource using unstructured.Unstructured.

Anything else we need to know?:
I have already done a similar feature in Argo-Events https://github.com/argoproj/argo-events/blob/master/pkg/apis/sensor/v1alpha1/types.go#L568

[VaibhavPage]

@kevdowney I can add this feature if you are fine with it

[kevdowney]

@VaibhavPage Yes, please do add this, would be a great improvement!