feat: Rename shortcut methods of encoder builder

Also moved executors_file_path to be an independent attribute

--- don't change below this line ---
ENG-4286 Took 19 minutes

examples/encoding-example/main.rs

@@ -23,7 +23,7 @@ fn main() {
     // Initialize the encoder
     let encoder = EVMEncoderBuilder::new()
         .chain(Chain::Ethereum)
-        .tycho_router_with_permit2(None, swapper_pk)
+        .initialize_tycho_router_with_permit2(swapper_pk)
         .expect("Failed to create encoder builder")
         .build()
         .expect("Failed to build encoder");