Added support for Laravel 7

Author: dcblogdev

composer.json

@@ -18,7 +18,7 @@
         "Office365"
     ],
     "require": {
-        "illuminate/support": "5.5.x|5.6.x|5.7.x|5.8.x|6.x",
+        "illuminate/support": "5.5.x|5.6.x|5.7.x|5.8.x|6.x|7.x",
         "league/oauth2-client": "^1.4|^2",
         "guzzlehttp/guzzle": "^6"
     },
@@ -38,4 +38,4 @@
             }
         }
     }
-}
+}