QUIC Adapter

This is an Abstract Symbols <-> Concrete Symbol adapter for the QUIC protocol based on quic-tracker.

Interesting Components:

• adapter/adapter.go -> The main interface for the learner, start point for requests.
• adapter/abstract.go -> Implementation of abstract alphabet.
• adapter/concrete.go -> Implementation of concrete alphabet.
• agents/ -> Collection of agents responsible for each aspect of the protocol.
• connection.go -> Main protocol state.