feat: add packet_id() to Packet enum

domo_proto/src/packet/mod.rs

@@ -21,6 +21,12 @@ pub enum Packet {
 }
 
 impl Packet {
+    pub fn packet_id(&self) -> Identifier {
+        match self {
+            Packet::V1 { packet_id, ..} => packet_id.clone()
+        }
+    }
+
     /// Build packet **without** CRC32
     pub fn build_base_packet(&self) -> Vec<u8> {
         match self {