Consumer Proxy: Support forward to provider dataplane

[wolf4ood]

Describe the solution you'd like

The current implementation of ConsumerAssetRequestController for fetching data automatically with
cached EDR, for now supports only the request using the endpointUrl which should point to the
asset location on the provider side ProviderGatewayController. This requires users to know the
URL of the proxied asset on the provider side, which in some case cannot be known. For those situation
we could use directly the EDR endpointUrl for fetching data.

In case of the AssetRequest does not contain the endpointUrl we should fallback to the one provided in the cached
EDR and we also should be able to support additional path segment and query parameters for this use case.