Hotfix 1.15 worldName support

Signed-off-by: Lixfel <agga-games@gmx.de>

SchematicSystem_Main/src/de/steamwar/schematicsystem/commands/CheckCommand.java

@@ -51,7 +51,9 @@ public class CheckCommand implements CommandExecutor {
                     }
                     break;
                 case "schematic":
-                    if(!player.getWorld().getName().equals(player.getUniqueId().toString())) {
+                    SteamwarUser checker = SteamwarUser.get(player.getUniqueId());
+                    String worldName = player.getWorld().getName();
+                    if(!worldName.equals(player.getUniqueId().toString()) && !worldName.equals(Integer.toString(checker.getId()))) {
                         player.sendMessage(SchematicSystem.PREFIX + "§cZum Prüfen musst du dich auf deinem Bauserver befinden!");
                         return false;
                     }else if(args.length < 3){