Use delegated scope for user scopes

Author: rayluo

sample/device_flow_sample.py

@@ -4,7 +4,7 @@
 {
     "authority": "https://login.microsoftonline.com/organizations",
     "client_id": "your_client_id",
-    "scope": ["https://graph.microsoft.com/.default"]
+    "scope": ["user.read"]
 }
 
 You can then run this sample with a JSON configuration file:

sample/username_password_sample.py

@@ -5,7 +5,7 @@
     "authority": "https://login.microsoftonline.com/organizations",
     "client_id": "your_client_id",
     "username": "your_username@your_tenant.com",
-    "scope": ["https://graph.microsoft.com/.default"],
+    "scope": ["user.read"],
     "password": "This is a sample only. You better NOT persist your password."
 }