Send 'hello' message to peer when user newly adds it

[justmoon]

ILP Kit should keep track of current peers as well as adding/removing peers via the database, not via the configuration.

That will allow us to do things like managing peers via the UI (to make it more user-friendly for the operator) and even have an API for adding peers.

[vhpoet]

TODO

• Peer CRUD
• Feed connector with db peers
• Remove peers from the config file (ilp-kit-cli)
• Peer editing
• Graphic showing the balance (----- | --------------)
• An invite link for the other side (fills in the form for them)

[vhpoet]

@sharafian is there a way to find out who has a one sided peering with you?

[justmoon]

@vhpoet: You'll receive RPC messages for a prefix you won't know what to do with...

@sharafian: We could make sure that the first RPC message that plugin-virtual sends is a handshake request with the information Vahe needs to detect it as a peering attempt.

@vhpoet: What information should an aspiring peer send? Name, logo, currency?

[vhpoet]

@justmoon host and currency for now.

[justmoon]

Let's also do limit.

[vhpoet]

@justmoon you mean a suggested limit ?

[justmoon]

No, I mean the hello packet should include the limit that the other side set, no?

[justmoon]

Talked to @vhpoet - the limit can already be queried and there is already code for querying it, so it makes no sense to include in the hello message.

[michielbdejong]

Peers are now stored in database, but we still need the 'hello' message.