Add Microsoft device code example with tenant ID (#222)

To make it more understandable for Microsoft Azure endpoint users,
an endpoint with tenant is added and edited the existing
example as common user.

examples/microsoft_devicecode_tenant_user.rs

@@ -0,0 +1,51 @@
+use oauth2::basic::BasicClient;
+use oauth2::devicecode::StandardDeviceAuthorizationResponse;
+use oauth2::reqwest::async_http_client;
+use oauth2::{AuthUrl, ClientId, DeviceAuthorizationUrl, Scope, TokenUrl};
+use std::error::Error;
+
+// Reference: https://learn.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-device-code
+// Please use your tenant id when using this example
+const TENANT_ID: &str = "{tenant}";
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn Error>> {
+    let device_auth_url = DeviceAuthorizationUrl::new(format!(
+        "https://login.microsoftonline.com/{}/oauth2/v2.0/devicecode",
+        TENANT_ID
+    ))?;
+    let client = BasicClient::new(
+        ClientId::new("client_id".to_string()),
+        None,
+        AuthUrl::new(format!(
+            "https://login.microsoftonline.com/{}/oauth2/v2.0/authorize",
+            TENANT_ID
+        ))?,
+        Some(TokenUrl::new(format!(
+            "https://login.microsoftonline.com/{}/oauth2/v2.0/token",
+            TENANT_ID
+        ))?),
+    )
+    .set_device_authorization_url(device_auth_url);
+
+    let details: StandardDeviceAuthorizationResponse = client
+        .exchange_device_code()?
+        .add_scope(Scope::new("read".to_string()))
+        .request_async(async_http_client)
+        .await?;
+
+    eprintln!(
+        "Open this URL in your browser:\n{}\nand enter the code: {}",
+        details.verification_uri().to_string(),
+        details.user_code().secret().to_string()
+    );
+
+    let token_result = client
+        .exchange_device_access_token(&details)
+        .request_async(async_http_client, tokio::time::sleep, None)
+        .await;
+
+    eprintln!("Token:{:?}", token_result);
+
+    Ok(())
+}