move examples to main repo so we can include_str them for publishing (#993)

* move exampels to main repo so we can include_str them for publishing

* update CI to not break examples

subxt/examples/runtime_apis_dynamic.rs

@@ -0,0 +1,32 @@
+use sp_keyring::AccountKeyring;
+use subxt::dynamic::Value;
+use subxt::{config::PolkadotConfig, OnlineClient};
+
+#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
+pub mod polkadot {}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create a client to use:
+    let api = OnlineClient::<PolkadotConfig>::new().await?;
+
+    // Create a dynamically runtime API payload that calls the
+    // `AccountNonceApi_account_nonce` function.
+    let account = AccountKeyring::Alice.to_account_id();
+    let runtime_api_call = subxt::dynamic::runtime_api_call(
+        "AccountNonceApi",
+        "account_nonce",
+        vec![Value::from_bytes(account)],
+    );
+
+    // Submit the call to get back a result.
+    let nonce = api
+        .runtime_api()
+        .at_latest()
+        .await?
+        .call(runtime_api_call)
+        .await?;
+
+    println!("Account nonce: {:#?}", nonce.to_value());
+    Ok(())
+}