- laying the groundwork for functional client->service node connections. this requires ALPNs verification as a secondary method of identification to the remote key
- refactored btreq stream creation to use improved stream creation logic in libquic
- redoing link_manager functions again to implement previously ignored review comments on several PRs
- conceptually merging "whitelist_routers" and new "known_{rids,rcs}", s.t. we can completely eliminate white/red/gray/green/etc lists in favor of something that isn't dumb