Move Subxt crate into a subfolder (#424)

* move into subfolder step 1

* Make folders a workspace again

* Move examples into their own workspace crate to make them more visible and easier to run

* clippy fix

* newline

* tweak releasing steps for folder move

* reference exampels more clearly in top level readme

subxt/tests/integration/utils/mod.rs

@@ -0,0 +1,21 @@
+// Copyright 2019-2022 Parity Technologies (UK) Ltd.
+// This file is part of subxt.
+//
+// subxt 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.
+//
+// subxt 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 subxt.  If not, see <http://www.gnu.org/licenses/>.
+
+mod context;
+mod node_proc;
+
+pub use context::*;
+pub use node_proc::TestNodeProcess;