Init relayer crate with tonic client code

utils/quartz-relayer/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "quartz-relayer"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+tonic = "0.11"
+tokio = { version = "1.0", features = ["macros", "rt-multi-thread"] }
+
+quartz-proto = { path = "../../utils/quartz-proto" }

utils/quartz-relayer/src/main.rs

@@ -0,0 +1,13 @@
+use quartz_proto::quartz::{core_client::CoreClient, SessionCreateRequest};
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let mut client = CoreClient::connect("http://localhost:11090").await?;
+
+    let request = tonic::Request::new(SessionCreateRequest {});
+
+    let response = client.session_create(request).await?;
+    println!("{:?}", response.into_inner());
+
+    Ok(())
+}