Newtype for serde #65
Description
The serde support of this crate is just plain awesome. I use #[serde(with = "hex::serde")] all the time. However, I just ran into the situation where I want a Vec<Vec<u8>> to be encoded as a list of hex strings. This is a lot less straightforward to implement, sadly.
To make this more ergonomic, I suggest adding a serialization wrapper newtype that I may use instead of serde_with. I could then write something like Vec<HexBytes> or Vec<Hex<Vec<u8>>> and it would just work.