feat: add client::{start, update}

src/bin/client.rs

@@ -0,0 +1,11 @@
+use checkers::network::client::Client;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    env_logger::init();
+
+    let mut client: Client = Client::new().await;
+    client.update().await;
+
+    return Ok(());
+}