message: cbor_event::se: Implement Serialize for u8 for convenience
diff: @@ -18,6 +18,11 @@ impl Serialize for u32 {
  serializer.write_unsigned_integer((*self) as u64)
  }
  }
  +impl Serialize for u8 {
  + fn serialize<W: Write+Sized>(&self, serializer: Serializer<W>) -> Result<Serializer<W>> {
  + serializer.write_unsigned_integer((*self) as u64)
  + }
  +}
  impl<'a> Serialize for &'a [u8] {
  fn serialize<W: Write+Sized>(&self, serializer: Serializer<W>) -> Result<Serializer<W>> {
  serializer.write_bytes(self)
  