Adding a few features I needed and could be useful for everyone else

• unpin patch version of irc and tokio-tungstenite
• add a feature to derive bevy traits (Resource, Component and Event)
• derive Clone for eventsub structs
• add ChannelFollow event
• return unknown event types
• store session_id in Client to be able to retrieve it from outside this crate
• parse and bail on API errors from https://api.twitch.tv/helix/eventsub/subscriptions
• reexport anyhow and async_trait