Move project metadata to pyproject.toml (#715)

Move project metadata to pyproject.toml

pyproject.toml

@@ -0,0 +1,59 @@
+[build-system]
+requires = ['setuptools']
+build-backend = 'setuptools.build_meta'
+
+[project]
+name        = 'asyncssh'
+license     = {text = 'EPL-2.0 OR GPL-2.0-or-later'}
+description = 'AsyncSSH: Asynchronous SSHv2 client and server library'
+readme      = 'README.rst'
+authors     = [{name = 'Ron Frederick', email = '[email protected]'}]
+classifiers = [
+    'Development Status :: 5 - Production/Stable',
+    'Environment :: Console',
+    'Intended Audience :: Developers',
+    'License :: OSI Approved',
+    'Operating System :: MacOS :: MacOS X',
+    'Operating System :: POSIX',
+    'Programming Language :: Python :: 3.7',
+    'Programming Language :: Python :: 3.8',
+    'Programming Language :: Python :: 3.9',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
+    'Topic :: Internet',
+    'Topic :: Security :: Cryptography',
+    'Topic :: Software Development :: Libraries :: Python Modules',
+    'Topic :: System :: Networking',
+]
+requires-python = '>= 3.6'
+dependencies    = [
+    'cryptography >= 39.0',
+    'typing_extensions >= 4.0.0',
+]
+dynamic = ['version']
+
+[project.optional-dependencies]
+bcrypt    = ['bcrypt >= 3.1.3']
+fido2     = ['fido2 >= 0.9.2']
+gssapi    = ['gssapi >= 1.2.0']
+libnacl   = ['libnacl >= 1.4.2']
+pkcs11    = ['python-pkcs11 >= 0.7.0']
+pyOpenSSL = ['pyOpenSSL >= 23.0.0']
+pywin32   = ['pywin32 >= 227']
+
+
+[project.urls]
+Homepage      = 'http://asyncssh.timeheart.net'
+Documentation = 'https://asyncssh.readthedocs.io'
+Source        = 'https://github.com/ronf/asyncssh'
+Tracker       = 'https://github.com/ronf/asyncssh/issues'
+
+[tool.setuptools.dynamic]
+version = {attr = 'asyncssh.version.__version__'}
+
+[tool.setuptools.packages.find]
+include = ['asyncssh*']
+
+[tool.setuptools.package-data]
+asyncssh = ['py.typed']