feat: Add Transaction as output of encoding

src/encoding/models.rs

@@ -42,7 +42,7 @@ pub struct Solution {
     pub native_action: Option<NativeAction>,
 }
 
-#[derive(Clone)]
+#[derive(Clone, PartialEq)]
 pub enum NativeAction {
     Wrap,
     Unwrap,
@@ -60,6 +60,12 @@ pub struct Swap {
     pub split: f64,
 }
 
+pub struct Transaction {
+    pub data: Vec<u8>,
+    // ETH value to be sent with the transaction.
+    pub value: BigUint,
+}
+
 pub struct EncodingContext {
     pub receiver: Bytes,
     pub exact_out: bool,