feat: implement Borrow<[u8]> for Multihash

Author: vmx

src/digests.rs

@@ -1,3 +1,4 @@
+use std::borrow::Borrow;
 use std::convert::TryFrom;
 use std::{cmp, fmt, hash};
 
@@ -86,6 +87,12 @@ impl AsRef<[u8]> for Multihash {
     }
 }
 
+impl Borrow<[u8]> for Multihash {
+    fn borrow(&self) -> &[u8] {
+        self.as_bytes()
+    }
+}
+
 impl<'a> PartialEq<MultihashRef<'a>> for Multihash {
     fn eq(&self, other: &MultihashRef<'a>) -> bool {
         &*self.as_bytes() == other.as_bytes()