[Feature Request] OAUTH2 needed for Gmail

[trgswe]

Amiga Mailers need OAUTH 2.0+ (2.1 and 2.2 really) to use GMail any more (especially with IMAP but soon also with POP accounts)

the easiest way to implement it is really with either of these two libraries (Link libraries, rather small code size, C++)
https://github.com/pipacs/o2 (github) or https://github.com/babelouest/iddawc (github, both OAUTH2 and OIDC client)

[polluks]

1. C++ includes some overhead.
2. "Iddawc is based on GnuTLS, Jansson, zlib, libmicrohttpd, libcurl and libsystemd (if possible)."