Utils part 2: create a separate buck target

Summary:
Pull Request resolved: https://github.com/facebookresearch/d2go/pull/560

This is the continuation from the part 1 D45912077.
As the dependencies have been resolved, we can define the targets inside the dir `d2go/utils`

Reviewed By: wat3rBro

Differential Revision: D46096376

fbshipit-source-id: ab674d382162a4d7e5ee944b2a649e23278ca79f

d2go/utils/misc.py

@@ -10,7 +10,7 @@ from typing import Any, Callable, Dict, Iterator, Optional
 
 import detectron2.utils.comm as comm
 import torch
-from d2go.config import CfgNode
+from d2go.config.config import CfgNode
 from d2go.utils.tensorboard_log_util import get_tensorboard_log_dir  # noqa: forwarding
 from detectron2.utils.file_io import PathManager
 from tabulate import tabulate

d2go/utils/testing/meta_arch_helper.py

@@ -3,7 +3,7 @@
 
 
 import torch
-from d2go.quantization.modeling import set_backend_and_create_qconfig
+from d2go.quantization.qconfig import set_backend_and_create_qconfig
 from d2go.registry.builtin import META_ARCH_REGISTRY
 from d2go.utils.testing.data_loader_helper import create_local_dataset
 from detectron2.structures import Boxes, ImageList, Instances