refactor/license compliance

keep the header notices

setup.py

@@ -65,6 +65,7 @@ def required(requirements_file):
     packages=['ovos_plugin_manager',
               'ovos_plugin_manager.templates',
               'ovos_plugin_manager.utils',
+              'ovos_plugin_manager.thirdparty',
               'ovos_plugin_manager.hardware',
               'ovos_plugin_manager.hardware.led'],
     url='https://github.com/OpenVoiceOS/OVOS-plugin-manager',