Partially add migration support

common/src/main/java/me/lucko/luckperms/constants/Message.java

@@ -298,7 +298,9 @@ public enum Message {
     ),
 
     IMPORT_END_ERROR_CONTENT("&e(Import) &d-> &c%s", true),
-    IMPORT_END_ERROR_FOOTER("&e(Import) &7<------------------------------------------>", true);
+    IMPORT_END_ERROR_FOOTER("&e(Import) &7<------------------------------------------>", true),
+
+    MIGRATION_NOT_CONSOLE("Migration must be performed from the Console.", true);
 
     private String message;
     private boolean showPrefix;

common/src/main/java/me/lucko/luckperms/constants/Permission.java

@@ -89,7 +89,9 @@ public enum Permission {
     LOG_TRACK_HISTORY("trackhistory", "log"),
     LOG_SEARCH("search", "log"),
     LOG_NOTIFY("notify", "log"),
-    LOG_EXPORT("export", "log");
+    LOG_EXPORT("export", "log"),
+
+    MIGRATION("migration", null);
 
     private String node;
     private String group;