merge commit in mace repo

mace_run.cc

@@ -33,6 +33,8 @@ namespace MACE_MODEL_TAG {
 
 extern NetDef CreateNet();
 
+extern const std::string ModelChecksum();
+
 }
 }
 
@@ -141,6 +143,7 @@ int main(int argc, char **argv) {
 
   std::cout << "mace version: " << MaceVersion() << std::endl
             << "mace git version: " << MaceGitVersion() << std::endl
+            << "model checksum: " << mace::MACE_MODEL_TAG::ModelChecksum() << std::endl
             << "input_shape: " << FLAGS_input_shape << std::endl
             << "output_shape: " << FLAGS_output_shape << std::endl
             << "input_file: " << FLAGS_input_file << std::endl