imap-codec library

With an expected volume of 333 billion messages per day in 2022, email is one of today's most common methods to exchange information on the Internet. For better or worse, email is unlikely to go away soon, meaning that even the latest software needs to support it in a trustworthy and resilient way. imap-codec is a misuse-resistant IMAP parsing and serialization library focusing on correctness and security. It should pave the way for a new generation of email clients, servers, and utilities written in Rust and become a reusable building block for the Next Generation Internet. To archive that, it is essential to stabilize the API, improve testing, provide excellent documentation, and establish a welcoming and sustainable open-source environment for imap-codec.