Add chunkstatus and chunkversion shaders (for problem determination)

forge-1.15.2/src/main/java/org/dynmap/forge_1_15_2/ForgeMapChunkCache.java

@@ -680,19 +680,6 @@ public class ForgeMapChunkCache extends MapChunkCache
             return (((chunkindex * worldheight) + y) << 8) | (bx << 4) | bz;
         }
         @Override
-        public final boolean isEmptySection()
-        {
-            try
-            {
-                return !isSectionNotEmpty[chunkindex][y >> 4];
-            }
-            catch (Exception x)
-            {
-                initSectionData(chunkindex);
-                return !isSectionNotEmpty[chunkindex][y >> 4];
-            }
-        }
-        @Override
         public RenderPatchFactory getPatchFactory() {
             return HDBlockModels.getPatchDefinitionFactory();
         }