Release 1.0.0

* split project into Library and CLI
  * can be used by other projects to access the tool's functionality
  * download the -shared version, also supports Boost.Python with Python 3.8
* added --extractFile mode to CLI
* automatically decrypt/encrypt archives when necessary
* added advanced compression mode
  * reduces storage of duplicate data, improve file sizes by ~5%
* improved non-Windows compatibility
* general code cleanup

Added AFS2 support

Don't use compression result if it's not at least 4 bytes smaller

Use boost::asio::thread_pool instead of std::async

This fixes a crash on some systems due to too many files being opened at once.
It also reduces the memory footprint significantly.

Fixed bug with mbe rebuild, more structures, debug output and documen…

…tation

Fixed absolute paths

Improved CSV validation, fixed bug in CSV parser

Fixed --pack not working with some target paths

Improved MBE feature, now supporting repacking

Fixed bug in --extract