misc: refactored code to work as a setup.py based package

Signed-off-by: Simone Margaritelli <evilsocket@gmail.com>

setup.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+from setuptools import setup, find_packages
+import pwnagotchi
+
+required = []
+with open('requirements.txt') as fp:
+    for line in fp:
+        line = line.strip()
+        if line != "":
+            required.append(line)
+
+setup(name='pwnagotchi',
+      version=pwnagotchi.version,
+      description='Pwnagotchi is a cute AI that eats WPA handshakes.',
+      author='evilsocket && the dev team',
+      author_email='evilsocket@gmail.com',
+      url='https://pwnagotchi.ai/',
+      install_requires=required,
+      scripts=['bin/pwnagotchi'],
+      license='GPL',
+      classifiers=[
+          'Programming Language :: Python :: 3',
+          'Development Status :: 5 - Production/Stable',
+          'License :: OSI Approved :: GNU General Public License (GPL)',
+          'Environment :: Console',
+      ])