Merge pull request #4122 from JurgenKuyper/fix_chunkversion_detection

added new dataversion mappings for 1.20.x untill 1.21

Author: mikeprimm

DynmapCore/src/main/java/org/dynmap/hdmap/ChunkVersionHDShader.java

@@ -64,6 +64,13 @@ private static class DataVersionMap {
     	new DataVersionMap(3120, "1.19.2", 0xe7aeb8),
     	new DataVersionMap(3218, "1.19.3", 0xf8c0c8),
     	new DataVersionMap(3337, "1.19.4", 0xffb6c1),
+        new DataVersionMap(3465, "1.20.1", 0xe7aeb10),
+        new DataVersionMap(3578, "1.20.2", 0xe196a7),
+        new DataVersionMap(3698, "1.20.3", 0xe7aeb11),
+        new DataVersionMap(3700, "1.20.4", 0xe196a8),
+        new DataVersionMap(3837, "1.20.5", 0xe7aeb12),
+        new DataVersionMap(3839, "1.20.6", 0xe196a9),
+        new DataVersionMap(3953, "1.21.0", 0xe7aeb13),
 
     };
     final static Color unknown_color = new Color(255, 255, 255);