Added test command for testing ore gen.

Started reimplementing quartz ore gen ontop of vanilla mechanics.
Fixes several sidedness issues.
Added recipe serialization for server->client sync.

src/main/java/appeng/server/AECommand.java

@@ -26,12 +26,18 @@ import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import net.minecraft.command.CommandSource;
 import net.minecraftforge.fml.server.ServerLifecycleHooks;
 
+import appeng.api.features.AEFeature;
+import appeng.core.AEConfig;
+
 public final class AECommand {
 
     public void register(CommandDispatcher<CommandSource> dispatcher) {
 
         LiteralArgumentBuilder<CommandSource> builder = literal("ae2");
         for (Commands command : Commands.values()) {
+            if (command.test && !AEConfig.instance().isFeatureEnabled(AEFeature.TEST_COMMANDS)) {
+                continue;
+            }
             add(builder, command);
         }