feat: Add selector to Transaction

Return selector in the StrategyEncoder. This is needed for the ExecutorStrategyEncoder

--- don't change below this line ---
ENG-4088 Took 12 minutes


Took 13 seconds

src/encoding/evm/mod.rs

@@ -3,4 +3,4 @@ mod constants;
 pub mod strategy_encoder;
 mod swap_encoder;
 pub mod tycho_encoder;
-mod utils;
+pub mod utils;