Cherrypick BDD AND_GIVEN based macros into Branch Catch1.x

[svdHero]

Description

In #1363 the AND_GIVEN macro was added to the master branch.

This seems to be a small change in code with a great benefit for nested BDD style tests. Could this macro be added/cherrypicked to the Catch1.x branch, too? For those of us who are still stuck with Catch1, e.g. due to Visual Studio 2013. :-/

That would be awesome!

[horenmar]

Sorry, but Catch v1 is very much EOLed. I might be convinced to review and merge a PR, but I am not planning to do the work cherry-picking the changes by myself.

[svdHero]

That makes totally sense. Thank you for being open for a PR. I shall go and try my luck. :)

[horenmar]

Since it has been almost 4 weeks, I am going to close the issue until further follow-up