Add setup.py so that the repo is installable with pip

setup.py

@@ -0,0 +1,10 @@
+from setuptools import setup
+
+setup(name='dune-sync',
+      version='0.1',
+      description='Components for syncing off-chain data with Dune Community Sources ',
+      url='https://github.com/cowprotocol/dune-sync',
+      author='cowprotocol',
+      author_email='[email protected]',
+      packages=['src'],
+      zip_safe=False)