[mod] #135: Move pylint rules from the Makefile to the pyproject.toml

Join lines, '/' at the end is no longer necessary
http://pylint.pycqa.org/en/latest/whatsnew/2.5.html?highlight=pyproject#other-changes

Disable R0401 additionnaly for duniterpy and tests in addition to example folder

Makefile

@@ -20,9 +20,7 @@ mypy:
 
 # check code errors
 pylint:
-	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613,R0801 --enable=C0121,C0202,C0321 --jobs=0 duniterpy/
-	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613,R0801 --enable=C0121,C0202,C0321 --jobs=0 tests/
-	poetry run pylint --disable=C,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613,E0401,R0801 --enable=C0121,C0202,C0321 --jobs=0 examples/
+	poetry run pylint duniterpy tests examples
 
 # check format
 check-format:

pyproject.toml

@@ -46,3 +46,8 @@ sphinx_rtd_theme = "^0.5.0"
 [tool.isort]
 profile = "black"
 src_paths = ["duniterpy", "tests", "examples"]
+
+[tool.pylint.messages_control]
+disable = "C,E0401,R0401,R0801,R0902,R0903,R0904,R0912,R0913,R0914,R0915,W0613"
+enable = "C0121,C0202,C0321"
+jobs = 0