Scoring metadata is now aggregated by scorer type to make it easier
to parse when reading it in the CLI.

fix build tag

This PR enhances the API package by having client only RPCs route
through the server when they are low cost and for filesystem access to
first attempt a direct connection to the node and then falling back to
a server routed request.

- No need to for a pointer to a pointer
- Properly set and use QueryOptions.Region

Fixes #3013

It's a little weird that Client now has a method for returning a
NewClient, but it's a convenient way to dedupe the logic to
connect-directly-to-a-node which is nontrivial and had sutble
differences between locations.