Pass in cdk.context.json from fromLookup(...)

[kpark-hrp]

Currently, resource IDs fetched from fromLookup(...) functions does not get resolved. Probably because cdk.context.json is not being passed in or found.

[dastbe]

For my own reference: https://docs.aws.amazon.com/cdk/v2/guide/context.html

Will need to investigate more. While extending this to support wiring in a cdk.context.json is easy, I'd like to also add some support for cdk context writeback.