add test and example

add test and example

[enh] #77 add authentication from credentials file

add test and example

update README.md

Add unit tests on inline()
Fix inline()

- Use poetry build, and poetry publish

- Defaults image used by jobs is Docker Python v3.5
- For format job, use Python v3.8 image which comes with Black installed

- for build, checks, releases, and doc jobs

- Add poetry.lock into the .gitignore

This reverts commit 4c7f2892.

remove wrong attr package (causing conflict with attrs package in Sakia)

- Request blocks around 30.000 as 360.000 does not already exists in Ğ1
- Move dummy credential before getpass in order to be overwriten
- Add ability to pass member credentials to listen_ws2p
- Add getpass import
- Close WS2P clients in three examples in case of a raised exception
- Use sys.exit() because pylint complains

- Remove comments

- with tests compatible with pytest, unittest does not read them

enhance request_web_socket_block.py example
enhance request_ws2p.py example comment