Update db_dvc.dvc (#230)

Update db_dvc.dvc to contain the updated class fields by running the
command at the state of the current revision:

```
python scripts/standardize_database.py db_dvc
```

Author: arhowe00

db_dvc.dvc

@@ -1,6 +1,6 @@
 outs:
-- md5: 86949d6c6a84200703e11eedc7aca417.dir
+- md5: b5d5ad14d93e38f9600fea910603e6d6.dir
   nfiles: 257
   hash: md5
   path: db_dvc
-  size: 933880337
+  size: 933880436