Add secure password storing (#4)

* Added xdg-compliant path for Linux and macOS

Created config.py

Moved system path logic to config.py

* Added secure password storing with keyring

* fixed not showing login screen if no password is saved

* Update readme with new config info

* add pywin32 lib

setup.py

@@ -8,10 +8,12 @@ setup(
         "requests",
         "beautifulsoup4",
         "textual",
+        "keyring",
+        "pywin32"
     ],
     entry_points={
         'console_scripts': [
             'zutui=zut_app.zutui:main',
         ],
     },
-)
+)