Serialize non-human-readble ip addresses as tuples

Since we know exactly how many bytes we should serialize as we can hint
to the serializer that it is not required which further reduces the
serialized size when compared to just serializing as bytes.

test_suite/tests/macros/mod.rs

@@ -73,3 +73,29 @@ macro_rules! hashmap {
         }
     }
 }
+
+macro_rules! seq_impl {
+    (seq $first:expr,) => {
+        seq_impl!(seq $first)
+    };
+    ($first:expr,) => {
+        seq_impl!($first)
+    };
+    (seq $first:expr) => {
+        $first.into_iter()
+    };
+    ($first:expr) => {
+        Some($first).into_iter()
+    };
+    (seq $first:expr , $( $elem: tt)*) => {
+        $first.into_iter().chain(seq!( $($elem)* ))
+    };
+    ($first:expr , $($elem: tt)*) => {
+        Some($first).into_iter().chain(seq!( $($elem)* ))
+    }
+}
+macro_rules! seq {
+    ($($tt: tt)*) => {
+        seq_impl!($($tt)*).collect::<Vec<_>>()
+    };
+}