Wrapper for Vec
It implements Deserialize, Serialize and Deref to [u8];
```rust use serde::{Deserialize, Serialize}; use serdebytesbase64::Bytes;
struct Val { val: Bytes }
fn main() { let result = serdejson::tostring(&Val { val: vec![ 133, 233, 101, 161, 106, 43, 149, 208, 90, 177, 238, 184, ].into() }).unwrap(); println!("{}", result); // {"val":"helloWorldBase64"} } ```