Support nested paths in field config specifically list type members

[mbaijal]

Is your feature request related to a problem?
The ApplicationAutoscaling CRDs do not include the creationTime in Status even though it is a part of the describe API responses because of the list type response. An attempt to fix this by explicitly specifying the field in the generator config also fails since the getMemberByPath method does not support specifying nested paths as required by this field.

Basically, I am trying to add the CreationTime to the status field as follows and this does not work as expected -

ScalableTarget:
    fields:
      CreationTime:
        from: DescribeScalableTarget
        path: ScalableTargets..CreationTime

Describe the solution you'd like
Enable getMemberByPath to handle such list type paths.

[RedbackThomson]

Implemented as part of aws-controllers-k8s/code-generator#183 with a follow up for map type in #936.