Add pyproject, better cross-referencing

pyproject.toml

@@ -0,0 +1,39 @@
+[build-system]
+requires = ["setuptools >= 61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+description = "Neural network emulators to transform field/map data"
+readme = "README.md"
+name = "map2map"
+dynamic = ["version"]
+requires-python = ">= 3.9"
+classifiers = [
+        "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+]
+
+dependencies = [
+        'torch>=1.2',
+        'numpy',
+        'scipy',
+        'matplotlib',
+        'tensorboard']
+
+authors = [
+  {name = "Yin Li", email = "eelregit@gmail.com"},
+  {name = "Deaglan Bartlett", email = "deaglan.bartlett@iap.fr"},
+  {name = "Guilhem Lavaux", email = "guilhem.lavaux@iap.fr" },
+]
+maintainers = [
+  {name = "Guilhem Lavaux", email = "guilhem.lavaux@iap.fr"}
+]
+
+[project.scripts]
+m2m = "map2map:main"
+
+[project.urls]
+#Homepage = "https://example.com"
+#Documentation = "https://readthedocs.org"
+Repository = "https://bitbucket.org/aquila-consortium/map2map.git"
+Issues = "https://bitbucket.org/aquila-consortium/map2map/issues/new"
+#Changelog = "https://github.com/me/spam/blob/master/CHANGELOG.md"