Use `endpoint` instead of `node`

Replace references to `node` with `endpoint` in methods, structs, docs, etc

Dynamically add `RelayUrl`s

Allow adding and removing `RelayUrl`s to your `RelayMap` in the endpoint

Introduce endpoint presets

Introducing presets, that allow you to easily set discovery and relay defaults for your project

Move `Tickets` into their own crate

Tickets now exist in `iroh-ticket`

Switch to `n0-error`

Replace `snafu` and `n0-snafu` errors with `n0-error`

Make `Connection::alpn` and `Connection::remote_id` infallible

Also adds additional APIs for working with 0-RTT connections

`iroh-blobs` compiles to WASM

QUIC Multipath support

implement QUIC multipath

• quinn iroh fork
• plumb into iroh

QUIC NAT traversal

Using Quic to traverse NATs

Add `EndpointHooks` to enable auth and connection inspection

`EndpointHooks` allow adding callbacks to specific moments in a connection lifecycle, to give users more control over what happens during the connection and storing both incoming/outgoing connection information

Rename `Discovery` to `AddressLookup`

Use `AddressLookup` rather than `Discovery` for clarity