Add setup.py installation script

This script can be useful to install ogclient on distributions that do not have
an already built ogclient package.

It is necessary to install ogclient in the right path, so the command you have
to use looks similar to:
python3 setup.py install --prefix=/opt/opengnsys/ogclient
                         --install-lib=/opt/opengnsys/ogclient
                         --install-script=/opt/opengnsys/ogclient

setup.py

@@ -0,0 +1,13 @@
+from distutils.core import setup
+
+setup(name='ogclient',
+      version='1.0',
+      description='Client for the OpenGnsys ecosystem',
+      author='Soleta OpenGnsys Support Team',
+      author_email='soporte-og@soleta.eu',
+      url='https://github.com/opengnsys/ogClient',
+      packages=['src', 'src.linux', 'src.virtual'],
+      scripts=['main.py'],
+      data_files=[('cfg', ['cfg/ogclient.json']),
+                  ('', ['LICENSE'])]
+)