Update the License header to match the new mod name

LOD -> Distance Horizons

src/main/java/com/seibel/lod/enums/VanillaOverdraw.java

@@ -1,3 +1,22 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    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 General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.enums;
 
 /**
@@ -6,6 +25,7 @@ package com.seibel.lod.enums;
  * <p>
  * This represents how far the LODs should overlap with
  * the vanilla Minecraft terrain.
+ * 
  * @author James Seibel
  * @version 10-11-2021
  */