blockdata: Derive PartialOrd, Ord and Hash for BlockHeader

Author: stevenroose

src/blockdata/block.rs

@@ -37,7 +37,7 @@ use crate::internal_macros::impl_consensus_encoding;
 /// ### Bitcoin Core References
 ///
 /// * [CBlockHeader definition](https://github.com/bitcoin/bitcoin/blob/345457b542b6a980ccfbc868af0970a6f91d1b82/src/primitives/block.h#L20)
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
+#[derive(Copy, PartialEq, Eq, Clone, Debug, PartialOrd, Ord, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "actual_serde"))]
 pub struct BlockHeader {