Added missing new method to WorldEditBlockState

src/main/java/net/coreprotect/worldedit/WorldEditBlockState.java

@@ -205,4 +205,10 @@ public final class WorldEditBlockState implements BlockState {
         return null;
     }
 
+    @Override
+    public BlockState copy() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
 }