Data: create a separate buck target

Summary:
Pull Request resolved: https://github.com/facebookresearch/d2go/pull/554

Create separate buck TARGET for the files in the directory `data`.

Reviewed By: wat3rBro

Differential Revision: D45912070

fbshipit-source-id: 6785f623343ac826b01fab4ac187b928462a45dc

d2go/data/build.py

@@ -10,7 +10,7 @@ from typing import Dict
 
 import torch
 from d2go.config import CfgNode
-from d2go.data.dataset_mappers import build_dataset_mapper
+from d2go.data.dataset_mappers.build import build_dataset_mapper
 from d2go.data.utils import ClipLengthGroupedDataset
 from detectron2.data import (
     build_batch_data_loader,

d2go/modeling/subclass.py

@@ -8,7 +8,8 @@ from typing import Any, Dict, List
 import numpy as np
 import torch
 from d2go.config import CfgNode as CN
-from d2go.data.dataset_mappers import D2GO_DATA_MAPPER_REGISTRY, D2GoDatasetMapper
+from d2go.data.dataset_mappers.build import D2GO_DATA_MAPPER_REGISTRY
+from d2go.data.dataset_mappers.d2go_dataset_mapper import D2GoDatasetMapper
 from detectron2.layers import cat
 from detectron2.modeling import ROI_HEADS_REGISTRY, StandardROIHeads
 from detectron2.utils.registry import Registry

d2go/runner/default_runner.py

@@ -15,7 +15,7 @@ from d2go.checkpoint import FSDPCheckpointer, is_distributed_checkpoint
 from d2go.config import CfgNode, CONFIG_SCALING_METHOD_REGISTRY, temp_defrost
 from d2go.config.utils import get_cfg_diff_table
 from d2go.data.build import build_d2go_train_loader
-from d2go.data.dataset_mappers import build_dataset_mapper
+from d2go.data.dataset_mappers.build import build_dataset_mapper
 from d2go.data.datasets import inject_coco_datasets, register_dynamic_datasets
 from d2go.data.transforms.build import build_transform_gen
 from d2go.data.utils import (