Migrate to pyproject.toml (PEP 621) and fix Python version requirement

.gitignore

@@ -5,4 +5,6 @@ tmp/*
 __pycache__
 log
 log/*
-.*
+.*
+build/
+dist/

pyproject.toml

@@ -0,0 +1,38 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "netqmpi"
+version = "0.1.0"
+description = "A high-level abstraction layer similar to MPI for distributed quantum programming over NetQASM."
+readme = "README.md"
+requires-python = ">=3.8"
+license = {text = "MIT"}
+authors = [
+    {name = "F. Javier Cardama", email = "javier.cardama@usc.es"}
+]
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+dependencies = [
+    "netqasm~=1.0.0",
+    "numpy~=1.24.3",
+]
+
+[project.optional-dependencies]
+test = ["pytest>=7.0"]
+
+[project.scripts]
+netqmpi = "netqmpi.runtime.cli:main"
+
+[project.urls]
+Homepage = "https://github.com/NetQIR/net-qmpi"
+Repository = "https://github.com/NetQIR/net-qmpi"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["netqmpi*"]
+exclude = ["test*"]