Fix folder names in client and test (#4360)

* client/rpc/api -> client/rpc-api

* client/util/wasm-builder-runner -> utils/wasm-builder-runner

* client/grafana-data-source -> utils/grafana-data-source

* test/utils -> test-utils

* fix moved path

* Update Cargo.lock

* Update Cargo.lock

substrate/client/rpc-api/src/author/hash.rs

@@ -0,0 +1,32 @@
+// Copyright 2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Extrinsic helpers for author RPC module.
+
+use primitives::Bytes;
+use serde::{Serialize, Deserialize};
+
+/// RPC Extrinsic or hash
+///
+/// Allows to refer to extrinsic either by its raw representation or its hash.
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub enum ExtrinsicOrHash<Hash> {
+	/// The hash of the extrinsic.
+	Hash(Hash),
+	/// Raw extrinsic bytes.
+	Extrinsic(Bytes),
+}