This feeds into efforts to create a working install target.
The order of headers is still funky, and was "fixed" by clang-format,
but in a way that doesn't exactly align with the style guide. Further
cleanup of header order is coming in a follow-up PR.
This adds Mongoose as a third-party library, and builds on top of that
an embedded HTTP server for our unit tests.
We are using a fork of Mongoose pending the merging of this PR:
https://github.com/cesanta/mongoose/pull/2301
The embedded web server will make our HTTP-based tests independent of
httpbin.org, which will make them quick and reliable.
Joey Parrish
Cosmin Stejerean