Set the default logging level to info

Summary:
Pull Request resolved: https://github.com/facebookresearch/d2go/pull/521

Further along the setup, D2Go loggers will have logging level set to debug. Setting logging level as debug for every process introduces unnecessary logs.

Reviewed By: miqueljubert

Differential Revision: D44561105

fbshipit-source-id: 536f75bb886aec644207933e9baeb91a862a7ca7

d2go/setup.py

@@ -38,7 +38,7 @@ from mobile_cv.common.misc.py import FolderLock, MultiprocessingPdb, post_mortem
 logger = logging.getLogger(__name__)
 
 
-def setup_root_logger(logging_level: int = logging.DEBUG) -> None:
+def setup_root_logger(logging_level: int = logging.INFO) -> None:
     """
     Sets up the D2Go root logger. When a new logger is created, it lies in a tree.
     If the logger being used does not have a specific level being specified, it