Qbittorrent-api

- Support qBittorrent v4.3.2 and Web API v2.7
- ``torrents/add`` supports adding torrents with tags via ``tags`` parameter
- ``app/preferences`` supports toggling internationalized domain name (IDN) support via ``idn_support_enabled``
- BREAKING CHANGE: for ``torrents/add``, ``is_root_folder`` (or ``root_folder``) is superseded by ``content_layout``
- For ``torrents/delete``, ``delete_files`` now defaults to ``False`` instead of required being explicitly passed

- Add support for non-standard API endpoint paths (Fixes 37)
- Allows users to leverage this client when qBittorrent is configured behind a reverse proxy
- For instance, if the Web API is being exposed at "http://localhost/qbt/", then users can instantiate via ``Client(host='localhost/qbt')`` and all API endpoint paths will be prefixed with "/qbt"
- Additionally, the scheme (i.e. http or https) from the user will now be respected as the first choice for which scheme is used to communicate with qBittorrent
- However, users still don't need to even specify a scheme; it'll be automatically determined on the first connection to qBittorrent
- Neither of these should be breaking changes, but if you're instantiating with an incorrect scheme or an irrelevant path, you may need to prevent doing that now

- Support qBittorrent v4.3.1 and Web API v2.6.1
- Path of torrent content now available via ``content_path`` from ``torrents/info``

- Fix support for raw bytes for ``torrent_files`` in ``torrents_add()`` for Python 3 (Fixes 34)

- Support qBittorrent v4.3.0.1 and Web API v2.6
- Due to qBittorrent changes, ``search/categories`` no longer returns anything and ``rss/renameRule`` works again

- Advertise support for Python 3.9