refact: Move basic types to harmony_types crate to avoid external dependencies.

This includes Id, IpAddress, Url and some other heavily used types

examples/nanodc/src/main.rs

@@ -18,9 +18,10 @@ use harmony::{
         },
         tftp::TftpScore,
     },
-    topology::{LogicalHost, UnmanagedRouter, Url},
+    topology::{LogicalHost, UnmanagedRouter},
 };
 use harmony_macros::{ip, mac_address};
+use harmony_types::net::Url;
 
 #[tokio::main]
 async fn main() {