Add 'TooManyRequestsException' error code to known list in CoreErrorsMapper.

This code is received from Yandex Object Storage when request throttled.

Change turns on retry stategy in this case.

Author: ianton-ru

aws-cpp-sdk-core/source/client/CoreErrors.cpp

@@ -69,6 +69,7 @@ void CoreErrorsMapper::InitCoreErrorsMapper()
     s_CoreErrorsMapper->emplace("ThrottlingException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("ThrottledException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("Throttling", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("TooManyRequestsException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("ValidationErrorException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
     s_CoreErrorsMapper->emplace("ValidationException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
     s_CoreErrorsMapper->emplace("ValidationError", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));