Non-Blocking Examples and Tests

[deckerego]

• Removed timeouts & waits to allow for nonblocking mode
• Tests for socket connection OSErrors
• Example for nonblocking mode
• Associated unit tests

[deckerego]

@nightmechanic - I merged in the changes you suggested as part of #25 without adding a "poll" mode, instead you can set the socket as "nonblocking" and do other work in the background. See the examples folder for how I tested things out on the ESP32-S2.

[deckerego]

See also https://docs.python.org/3/library/socket.html#timeouts-and-the-accept-method

[nightmechanic]

Thanks a lot, I imagined I didnt use the non-blocking mode properly (enabled it too late i think),

and sorry for not following up, been too busy with work etc. Happy new year!