Remove gitmodules

Integrate api and lang into core

src/api/java/appeng/api/networking/IGridMultiblock.java

@@ -0,0 +1,20 @@
+package appeng.api.networking;
+
+import java.util.Iterator;
+
+/**
+ * An extension of IGridBlock, only means something when your getFlags() contains REQUIRE_CHANNEL, when done properly it
+ * will call the method to get a list of all related nodes and give each of them a channel simultaneously for the entire
+ * set. This means your entire Multiblock can work with a single channel, instead of one channel per block.
+ */
+public interface IGridMultiblock extends IGridBlock
+{
+
+	/**
+	 * Used to acquire a list of all nodes that are part of the multiblock.
+	 * 
+	 * @return an iterator that will iterate all the nodes for the multiblock. ( read-only iterator expected. )
+	 */
+	Iterator<IGridNode> getMultiblockNodes();
+
+}