tools/bench: add hash/tiger to benchmark

tools/bench.cpp

@@ -7,6 +7,7 @@
 #include "cruft/crypto/hash/ripemd.hpp"
 #include "cruft/crypto/hash/sha1.hpp"
 #include "cruft/crypto/hash/sha2.hpp"
+#include "cruft/crypto/hash/tiger.hpp"
 
 #include <cruft/util/std.hpp>
 #include <cruft/util/random.hpp>
@@ -71,6 +72,7 @@ main (void)
         SHA1,
         SHA256,
         blake<512>,
-        blake2
+        blake2,
+        tiger
     )
 }