Optimize world generation and add a config to set the number of generation threads

src/main/java/com/seibel/lod/handlers/LodConfig.java

@@ -46,10 +46,14 @@ public class LodConfig
 		
 		public ForgeConfigSpec.BooleanValue allowUnstableFeatureGeneration;
 		
+		public ForgeConfigSpec.IntValue numberOfWorldGenerationThreads;
+		
 		/** this is multiplied by the default view distance
 		 * to determine how far out to generate/render LODs */
 		public ForgeConfigSpec.IntValue lodChunkRadiusMultiplier;
 		
+		
+		
 		Client(ForgeConfigSpec.Builder builder)
 		{
 	        builder.comment(ModInfo.MODNAME + " configuration settings").push("client");
@@ -176,6 +180,18 @@ public class LodConfig
 	                		+ " https://gitlab.com/jeseibel/minecraft-lod-mod/-/issues/35 \n")
 	                .define("allowUnstableFeatureGeneration", false);
 	        
+	        numberOfWorldGenerationThreads = builder
+	                .comment("\n\n"
+	                		+ " This is how many threads are used when generating terrain. \n"
+	                		+ " If you experience stuttering when generating terrain, decrease \n"
+	                		+ " this number. If you want to increase LOD generation speed, \n"
+	                		+ " increase the number. \n"
+	                		+ " The max is the number of processors on your CPU. \n"
+	                		+ "\n"
+	                		+ " Requires a restart to take effect. \n"
+	                		)
+	                .defineInRange("numberOfWorldGenerationThreads", Runtime.getRuntime().availableProcessors(), 1, Runtime.getRuntime().availableProcessors());
+	        
 	        
 	        builder.pop();
 	    }