feat: Updating producer to configure RoutingPolicy - adding partition_key as the default for Round Robin if set (#366)

Author: kaustubh-garimella-genius

Cargo.toml

@@ -30,6 +30,7 @@ futures = "^0.3.31"
 futures-rustls = { version = "^0.26.0", default-features = false, features = ["tls12", "logging"], optional = true } # replacement of crate async-rustls (also a fork of tokio-rustls)
 log = "^0.4.27"
 lz4 = { version = "^1.28.0", optional = true }
+murmur3 = "0.5.2"
 native-tls = { version = "^0.2.12", optional = true }
 nom = { version = "^7.1.3", default-features = false, features = ["alloc"] }
 openidconnect = { version = "^4.0.0", optional = true }

src/lib.rs

@@ -223,6 +223,7 @@ pub mod message;
 pub mod producer;
 pub mod reader;
 mod retry_op;
+pub mod routing_policy;
 mod service_discovery;
 
 #[cfg(all(