Create a struct to conveniently hold the source parameters for a container resolve request and use it in the Add() function of the resolver.
AuthFilePath
Resolver
Add a new field `AuthFilePath` and if it is not the empty string, it will be forwaded that information to `Client`.
Add a new class `container.Resolver` which can be used to resolve multiple container images to their respective ids in parallel. It should make it easy for all existing tools and api endpoints to adpot container resultion.
