pyproject.toml: add configuration file for poetry

Main and dev dependencies, and optional docs
Issue #52

pyproject.toml

@@ -0,0 +1,34 @@
+[tool.poetry]
+name = "cleanpython"
+version = "0.1.0"
+description = "Clean code with batteries included."
+authors = ["iacopo <[email protected]>"]
+license = "MIT"
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.12"
+Flask = "^3.0.0"  # Just an example
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^7.4.3"
+pytest-benchmark = "^4.0.0"
+pytest-cov = "^4.1.0"
+coverage = "^7.3.2"
+mypy = "^1.6.1"
+pylint = "^3.0.2"
+flake8 = "^6.1.0"
+isort = "^5.12.0"
+black = "^23.10.1"
+
+[tool.poetry.group.docs]
+optional = true
+
+[tool.poetry.group.docs.dependencies]
+Sphinx = "^7.2.6"
+sphinx-sizzle-theme = "^0.1.3"
+myst-parser = "^2.0.0"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"