Fix Copyright

Signed-off-by: Chaoscaot <chaoscaot444@gmail.com>

SpigotCore_Main/src/de/steamwar/sql/CheckedSchematic.java

@@ -2,14 +2,17 @@
     This file is a part of the SteamWar software.
 
     Copyright (C) 2020  SteamWar.de-Serverteam
+
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
+
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     GNU Affero General Public License for more details.
+
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */