Features/swarm

[RyanKung]

No description provided.

[RyanKung]

Need to do more doc work

[RyanKung]

For testing:

cargo run -- -d 127.0.0.1:50000
cargo run -- -d 127.0.0.1:50001

 curl -v  http://127.0.0.1:50000/connect\?node\=http://127.0.0.1:50001/sdp

And plz check the log @Raytlty

INFO - mDNS is using 0.0.0.0:5353 as dest_addr
INFO - Looping and listening Ok(0.0.0.0:5353)
INFO - signaling state changed to have-local-offer
INFO - signaling state changed to stable
thread 'tokio-runtime-worker' panicked at 'called `Result::unwrap()` on an `Err` value: operation can not be run in current signaling state', /Users/ryan/Dev/bns/bns-node/src/discoveries/http.rs:91:63
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
WARN - [controlled]: could not listen udp fe:80::: io error: Can't assign requested address (os error 49)
INFO - [controlling]: Setting new connection state: Checking
WARN - [controlling]: pingAllCandidates called with no candidate pairs. Connection is not possible yet.
WARN - [controlling]: pingAllCandidates called with no candidate pairs. Connection is not possible yet.
INFO - ICE connection state changed: checking
WARN - [controlling]: failed to resolve stun host: stun.l.google.com:19302: io error: No available ipv6 IP address found!
WARN - [controlling]: pingAllCandidates called with no candidate pairs. Connection is not possible yet.