Update mappings to stable_39-1.12 (#322)

src/main/java/appeng/block/crafting/BlockCraftingUnit.java

@@ -43,6 +43,7 @@ import net.minecraftforge.common.property.ExtendedBlockState;
 import net.minecraftforge.common.property.IExtendedBlockState;
 import net.minecraftforge.common.property.IUnlistedProperty;
 
+import javax.annotation.Nonnull;
 import java.util.EnumSet;
 
 
@@ -111,7 +112,7 @@ public class BlockCraftingUnit extends AEBaseTileBlock {
     }
 
     @Override
-    public BlockRenderLayer getBlockLayer() {
+    public BlockRenderLayer getRenderLayer() {
         return BlockRenderLayer.CUTOUT;
     }