feat: add Identifier::random and some other tiny fixes

domo_proto/src/packet/identifier.rs

@@ -1,10 +1,17 @@
 use std::fmt::{Display, Formatter, LowerHex};
+use rand::random;
 
 #[derive(Debug, Eq, PartialEq, Copy, Clone)]
 pub struct Identifier {
     pub bytes: [u8; 4],
 }
 
+impl Identifier {
+    pub fn random() -> Identifier {
+        Identifier::from(random::<u32>())
+    }
+}
+
 impl Display for Identifier {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         write!(