This adds shims which provide FromXml and IntoXml implementations to
*all* macro-generated types in `xmpp_parsers`. Mind that this does not
cover all types in `xmpp_parsers`, but a good share of them.
This is another first step toward real, fully streamed parsing.
hickory-resolver’s MSRV is 1.67, those super old toolchain versions
wouldn’t build a recent version of tokio-xmpp anyway.
This effectively reverts 52a2d962ee.
Version 0.21 replaced base64::decode() with an Engine trait and multiple
structs implementing it for various alphabets, various performance
profiles, etc. It is slightly longer to import but in the end does the
very same thing.
It can be done directly using `jid = { version = "*", features =
["stringprep"] }` even though jid is imported from another lib.
Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
