#66: Introduce Poetry

changed milestone to %0.57.0

unmarked as a Work In Progress

changed title from WIP: #66 Poetry to #66: Introduce Poetry

added 16 commits

a5f39585...79472f2e - 3 commits from branch dev
3e866b8b - Revert "[enh] Add coveralls as dev dependency"
14789dcc - [enh] #66 (closed): Add pyproject.toml file
473a02a2 - [mod] #66 (closed): Do not commit the lock file
b08d5f59 - [mod] #66 (closed): Update release.sh to update the version in pyproject.toml
6b98e015 - [mod] #66 (closed): Remove setup.{py,cfg} and requirements{,_deploy,_dev}.txt
e151f0c5 - [ci] Remove useless runtime dependencies installation
524235dd - [ci] #66 (closed): Remove Pyenv, Use Poetry Docker image
ef0fac11 - [mod] #66 (closed): Trigger only when pyproject.toml changes
7ebae883 - [mod] #66 (closed): Update CI to install dependencies with Poetry
91bb796f - [mod] #66 (closed): Update the Makefile with Poetry usage
aa990455 - [mod] #66 (closed): Update the README with Poetry usage
3a1b3971 - [doc] #66 (closed): fix typos in the README.md
d772134f - [ci] publish PyPI test release on tag to avoid duplicate release