Expose P2P network information from the P2P orchestrator

[bvrooman]

Getting currently connected peers:

• [x] get_peers() method on network service returns the list of currently connected peers
• [ ] Peers schema in fuel-core
• [ ] GraphQL endpoint for retrieving Peers where the list of peers is populated by calling get_peers() on network service
• [ ] Schema wrapper in fuel-client
• [ ] get_peers() method on client returns the list of peers populated by querying GraphQL for peers

Peers subscription:

• [ ] get_peer_updates() method on network service to create subscription to P2P events like peer connect and disconnect
• [ ] P2P events are published to the subscription with the peer ID and peer event for all peers
• [ ] GraphQL endpoint for calling get_peer_updates() and peer events are published to a websocket
• [ ] get_peer_updates() on client queries GraphQL endpoint for peer updates

[bvrooman]

Blocked on ongoing P2P upgrades

[Voxelot]

this should be unblocked now

[xgreenx]

@leviathanbeak @bvrooman What is the status of this issue right now?