DojoStatusCode => Add statusCode for limited reached of exercise per assignment

types/Dojo/DojoStatusCode.ts

@@ -8,7 +8,8 @@ enum DojoStatusCode {
     ASSIGNMENT_CREATION_GITLAB_ERROR    = 202,
     ASSIGNMENT_CREATION_INTERNAL_ERROR  = 203,
     EXERCISE_CREATION_GITLAB_ERROR      = 302,
-    EXERCISE_CREATION_INTERNAL_ERROR   = 303
+    EXERCISE_CREATION_INTERNAL_ERROR    = 303,
+    MAX_EXERCISE_PER_ASSIGNMENT_REACHED = 304
 }