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/frame/system.rs

@@ -0,0 +1,63 @@
+// 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/>.
+
+use crate::{
+    node_runtime::{
+        system,
+        DispatchError,
+    },
+    pair_signer,
+    test_context,
+};
+use assert_matches::assert_matches;
+use sp_keyring::AccountKeyring;
+use subxt::Signer;
+
+#[async_std::test]
+async fn storage_account() -> Result<(), subxt::Error<DispatchError>> {
+    let alice = pair_signer(AccountKeyring::Alice.pair());
+
+    let cxt = test_context().await;
+    let account_info = cxt
+        .api
+        .storage()
+        .system()
+        .account(alice.account_id().clone(), None)
+        .await;
+
+    assert_matches!(account_info, Ok(_));
+    Ok(())
+}
+
+#[async_std::test]
+async fn tx_remark_with_event() -> Result<(), subxt::Error<DispatchError>> {
+    let alice = pair_signer(AccountKeyring::Alice.pair());
+    let cxt = test_context().await;
+
+    let found_event = cxt
+        .api
+        .tx()
+        .system()
+        .remark_with_event(b"remarkable".to_vec())
+        .sign_and_submit_then_watch(&alice)
+        .await?
+        .wait_for_finalized_success()
+        .await?
+        .has_event::<system::events::Remarked>()?;
+
+    assert!(found_event);
+    Ok(())
+}