ingest: Log block and transaction hashes in display order

We should also be consistent in the SQLite database about either storing
as TEXT in display order, or storing as BLOB in wire order. But as
that's another breaking change, let's bundle it in with anything else we
need to do to address this problem.

cmd/ingest/main.go

@@ -201,7 +201,7 @@ func handleBlock(db *sql.DB, sequence int, blockData []byte) {
 	entry := log.WithFields(logrus.Fields{
 		"seqnum":        sequence,
 		"block_height":  block.GetHeight(),
-		"block_hash":    blockHash,
+		"block_hash":    hex.EncodeToString(block.GetDisplayHash()),
 		"block_version": block.GetVersion(),
 		"tx_count":      block.GetTxCount(),
 		"sapling":       block.HasSaplingTransactions(),
@@ -226,7 +226,7 @@ func handleBlock(db *sql.DB, sequence int, blockData []byte) {
 		)
 		entry = log.WithFields(logrus.Fields{
 			"block_height": block.GetHeight(),
-			"block_hash":   blockHash,
+			"block_hash":   hex.EncodeToString(block.GetDisplayHash()),
 			"tx_index":     index,
 			"tx_size":      len(tx.Bytes()),
 			"sapling":      tx.HasSaplingTransactions(),