mpris: Add helper for enumerating players, watching for new players (#12)

mpris2/examples/enumerate.rs

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: MPL-2.0
+
+use futures_util::stream::StreamExt;
+use mpris2_zbus::enumerator::Enumerator;
+
+#[tokio::main]
+async fn main() -> zbus::Result<()> {
+	let connection = zbus::Connection::session().await?;
+	let enumerator = Enumerator::new(&connection).await?;
+	let mut stream = enumerator.receive_changes().await?;
+	println!("players: {:?}", enumerator.players().await?);
+	while let Some(event) = stream.next().await {
+		println!("change: {:?}", event?);
+	}
+	Ok(())
+}