New features

[dhananjaysathe]

Hey there , i added a bunch of features to the librabbitmq code as a part of stuff i needed, others may find these useful. I know this is a big set of changes , but broadly

• adds support for connection blocking with publisher confirms
• adds support for basic ssl endpoints (no fancy ca certs etc) -> move to cmake
• bumps the version of rabbitmq-c to latest (i neeed the perf / sni improvements)

I am happy to have you look at it and make individual prs for the features you would want to upstream and then focus on polishing those for merge

[thedrow]

Hi @dhananjaysathe

Version 0.10 was released. If you can update the PR, I'll merge it.

[spumer]

Any updates?

[thedrow]

@spumer None. Feel free to revive this PR.