chore(internal): adds support for resource configuration

[snorrees]

Temp branch to explore resource targets in the api.

Current tagged release: 6.27.2-resources.1

See added unit-tests tests for what I've tested.

Caveats

Current impl takes experimental_resource or projectId resource.r<esourceType>.<resourceId> (which then sets experimental_resource config)

The client then is forced into useProjectHostname: false

Then all requests get // prepended (urls are changed)

This is probably not what we want for client.request that currently use useProjectHostname.