Add setup script

main.py

 #!/usr/bin/env python3
 
+# Developed with Python 3.8.5
+
 import argparse
 import sys
 import os

setup.py

+#!/usr/bin/env python3
+
+from setuptools import setup, find_packages
+setup(
+    name="metadata-collect-agent",
+    version="0.1",
+    packages=find_packages(),
+    scripts=["main.py"],
+
+    install_requires=["pylibacl>=0.5.4",
+                      "msgpack>=1.0.0",
+                      "urllib3>=1.25.10"
+                      "psutil>=5.7.2"],
+
+    author="Nexedi SA",
+    author_email="leo.le.bouter@nexedi.com"
+)