(SingleRateLimit) add get_limit func

Author: jcxldn

xbox/webapi/common/ratelimits/__init__.py

@@ -46,6 +46,9 @@ def get_counter(self) -> int:
     def get_time_period(self) -> "TimePeriod":
         return self.__time_period
 
+    def get_limit(self) -> int:
+        return self.__limit
+
     def get_limit_type(self) -> "LimitType":
         return self.__type