Added auth and webmessages

dragonion_core/proto/file/auth.py

@@ -0,0 +1,15 @@
+import sqlitedict
+
+
+class AuthFile(sqlitedict.SqliteDict):
+    """
+    Valid AuthFile has fields:
+    host - .onion url of service
+    auth - v3 onion auth string in format, that can be written to .auth_private file
+    """
+    def __init__(self, service):
+        super().__init__(
+            filename=f'{service}.auth',
+            tablename='auth',
+            autocommit=True
+        )