Add benchmark-hash to the release

Author: JamesPiechota

rebar.config

@@ -42,6 +42,7 @@
 		{copy, "bin/start", "bin/start"},
 		{copy, "bin/stop", "bin/stop"},
 		{copy, "bin/create-wallet", "bin/create-wallet"},
+		{copy, "bin/benchmark-hash", "bin/benchmark-hash"},
 		{copy, "bin/benchmark-packing", "bin/benchmark-packing"},
 		{copy, "bin/benchmark-packing-all", "bin/benchmark-packing-all"},
 		{copy, "bin/benchmark-vdf", "bin/benchmark-vdf"},