(gen2-migration) `generate` command should handle lambda layers

[iliapolo]

Is this feature request related to a new or existing Amplify category?

No response

Is this related to another service?

No response

Describe the feature you'd like to request

Lambda layers from Gen1 should be migrated to Gen2.

Describe the solution you'd like

We should follow the Gen2 documentation and generate the recommended API.

https://docs.amplify.aws/react/build-a-backend/functions/add-lambda-layers/

Describe alternatives you've considered

None

Additional context

This is how lambda layers work in Gen1: https://docs.amplify.aws/gen1/javascript/build-a-backend/functions/layers/

Is this something that you'd be interested in working on?

• 👋 I may be able to implement this feature request

Would this feature include a breaking change?

• ⚠️ This feature might incur a breaking change

[dgandhi62]

Major missing functionality. Needs more investigation. Triaging this as p1