v3.0.0

Changed

• Removed all internal panic #![deny(clippy::unwrap_used)]
• Testnet::new(size) returns a Result<Testnet>.
• Dht::local_addr() returns a Result<SocketAddr>.
  AsyncDht::local_addr() returns a Result<SocketAddr>.

v1.0.0

chore: publish 1.0.0