[router] Impl radix tree and set up CI (#1893)

Co-authored-by: Lianmin Zheng <lianminzheng@gmail.com>

scripts/ci_install_rust.sh

@@ -0,0 +1,15 @@
+# these are required for actix
+apt-get update
+apt-get install -y libssl-dev pkg-config
+
+# Install rustup (Rust installer and version manager)
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+
+
+# Follow the installation prompts, then reload your shell
+. "$HOME/.cargo/env" 
+source $HOME/.cargo/env
+
+# Verify installation
+rustc --version
+cargo --version