message: Add support for DT_BOOL to TFDataTypeToNGraphElementType
diff: @@ -112,6 +112,9 @@ tf::Status TFDataTypeToNGraphElementType(tf::DataType tf_dt,
  case tf::DataType::DT_UINT64:
  *ng_et = ng::element::u64;
  break;
  + case tf::DataType::DT_BOOL:
  + *ng_et = ng::element:boolean;
  + break;
  default:
  return tf::errors::Unimplemented("Unsupported TensorFlow data type: ",
  tf::DataType_Name(tf_dt));
  