analyze th possibility of combining C++ coroutine with libuv

[tojocky]

An attempt is here: https://github.com/jimspr/awaituv Problems:

• How is it possible to have multiple calls (global event loop)
• error handling
• more at http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0664r5.html