Added pyproject.toml and removed setup.py

pyproject.toml

@@ -0,0 +1,38 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pycrires"
+version = "Data reduction pipeline for VLT/CRIRES+"
+authors = [
+    {name = "Tomas Stolker", email = "[email protected]"},
+    {name = "Rico Landman", email = "[email protected]"},
+]
+description = "Data reduction pipeline for VLT/CRIRES+"
+readme = "README.rst"
+requires-python = ">=3.9"
+license = {text = "MIT License"}
+classifiers = [
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "License :: OSI Approved :: MIT License",
+    "Intended Audience :: Science/Research",
+    "Topic :: Scientific/Engineering :: Astronomy",
+]
+
+[project.urls]
+Documentation = "https://pycrires.readthedocs.io"
+Repository = "https://github.com/tomasstolker/pycrires"
+Issues = "https://github.com/tomasstolker/pycrires/issues"
+
+[tool.setuptools]
+packages = []
+py-modules = []
+
+[tool.setuptools.dynamic]
+dependencies = {file = ["requirements.txt"]}
+
+[tool.setuptools.package-data]
+example = ["keywords.txt", "calib_data/*.txt", "calib_data/*.dat"]