QUIC protocol implementation for compio.

This crate provides QUIC (RFC9000) support for compio, built on top of quinn-proto. QUIC is a modern transport protocol that provides features like multiplexing, built-in encryption, and improved connection migration, making it ideal for applications like HTTP/3 (RFC9114).

• QUIC client and server support
• Built on quinn-proto for robust QUIC implementation
• Optional HTTP/3 support via the h3 feature
• Multiple certificate verification options:
  • platform-verifier: Use platform-specific certificate verification
  • native-certs: Use system's native certificate store
  • webpki-roots: Use Mozilla's root certificates
• Integration with compio's completion-based IO model
• Cross-platform support

Use compio directly with quic feature enabled:

cargo add compio --features quic

Example:

use compio::quic::{Endpoint, ClientConfig};

let mut endpoint = Endpoint::client("0.0.0.0:0".parse()?)?;
let connection = endpoint.connect("compio.rs:443", "compio.rs").await?;

// Use the QUIC connection
let (mut send, mut recv) = connection.open_bi().await?;
send.write_all(b"Hello QUIC!").await?;