devel/py-trio

- Remove devel/py-trio for being a duplicate of net/py-trio added a few days ago

Reported by:	linimon

- Add devel/py-trio: Friendly Python library for async concurrency and I/O

The Trio project’s goal is to produce a production-quality,
permissively licensed, async/await-native I/O library for Python.
Like all async libraries, its main purpose is to help you write
programs that do multiple things at the same time with parallelized
I/O. A web spider that wants to fetch lots of pages in parallel, a
web server that needs to juggle lots of downloads and websocket
connections at the same time, a process supervisor monitoring
multiple subprocesses… that sort of thing. Compared to other
libraries, Trio attempts to distinguish itself with an obsessive
focus on usability and correctness. Concurrency is complicated; we
try to make it easy to get things right.

WWW: https://pypi.org/project/trio/