Add setup.py/cfg for project metadata and packaging.

This uses pbr for setup.py which automatically extracts features
and entrypoints out of setup.cfg otherwise you would have to type
this by hand.

Some fields of setup.cfg still need changing the have been
commented out in the meantime.

requirements.txt

+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+
+pbr>=2.0 # Apache-2.0
\ No newline at end of file

setup.cfg

+[metadata]
+name = Tango Station Control
+summary = LOFAR 2.0 Station Control
+#description-file =
+#    README.rst
+description-content-type = text/x-rst; charset=UTF-8
+author = ASTRON
+#home-page = https://dantalion.nl
+#project_urls =
+#    Bug Tracker = https://github.com/Dantali0n/RadLoggerPy/issues
+#    Documentation = https://docs.openstack.org/pbr/
+#    Source Code = https://github.com/Dantali0n/radloggerpy
+license = Apache-2
+classifier =
+    Environment :: Console
+    License :: Apache Software License
+    Operating System :: POSIX :: Linux
+    Programming Language :: Python
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+
+[files]
+packages =
+    devices
+
+[entry_points]
+console_scripts =
+    SDP = devices.SDP:main
+    PCC = devices.PCC:main
+

setup.py

+import setuptools
+
+setuptools.setup(setup_requires=['pbr>=2.0.0'], pbr=True)
\ No newline at end of file