Refactor the task_datasets module

Refactor the task_datasets module:

1. Add new module modelscope.msdatasets.dataset_cls.custom_datasets.
2. Add new function: modelscope.msdatasets.ms_dataset.MsDataset.to_custom_dataset().
2. Add calling to_custom_dataset() func in MsDataset.load() to adapt new custom_datasets module.
3. Refactor the pipeline for loading custom dataset: 
	1) Only use MsDataset.load() function to load the custom datasets.
	2) Combine MsDataset.load() with class EpochBasedTrainer.
4. Add new entry func for building datasets in EpochBasedTrainer: see modelscope.trainers.trainer.EpochBasedTrainer.build_dataset()
5. Add new func to build the custom dataset from model configuration, see: modelscope.trainers.trainer.EpochBasedTrainer.build_dataset_from_cfg()
6. Add new registry function for building custom datasets, see: modelscope.msdatasets.dataset_cls.custom_datasets.builder.build_custom_dataset()
7. Refine the class SiameseUIETrainer to adapt the new custom_datasets module.
8. Add class TorchCustomDataset as a superclass for custom datasets classes.
9. To move modules/classes/functions:
	1) Move module msdatasets.audio to custom_datasets
	2) Move module msdatasets.cv to custom_datasets
	3) Move module bad_image_detecting to custom_datasets
	4) Move module damoyolo to custom_datasets
	5) Move module face_2d_keypoints to custom_datasets
	6) Move module hand_2d_keypoints to custom_datasets
	7) Move module human_wholebody_keypoint to custom_datasets
	8) Move module image_classification to custom_datasets
	9) Move module image_inpainting to custom_datasets
	10) Move module image_portrait_enhancement to custom_datasets
	11) Move module image_quality_assessment_degradation to custom_datasets
	12) Move module image_quality_assmessment_mos to custom_datasets
	13) Move class LanguageGuidedVideoSummarizationDataset to custom_datasets
	14) Move class MGeoRankingDataset to custom_datasets
	15) Move module movie_scene_segmentation custom_datasets
	16) Move module object_detection to custom_datasets
	17) Move module referring_video_object_segmentation to custom_datasets
	18) Move module sidd_image_denoising to custom_datasets
	19) Move module video_frame_interpolation to custom_datasets
	20) Move module video_stabilization to custom_datasets
	21) Move module video_super_resolution to custom_datasets
	22) Move class GoproImageDeblurringDataset to custom_datasets
	23) Move class EasyCVBaseDataset to custom_datasets
	24) Move class ImageInstanceSegmentationCocoDataset to custom_datasets
	25) Move class RedsImageDeblurringDataset to custom_datasets
	26) Move class TextRankingDataset to custom_datasets
	27) Move class VecoDataset to custom_datasets
	28) Move class VideoSummarizationDataset to custom_datasets
10. To delete modules/functions/classes:
	1) Del module task_datasets
	2) Del to_task_dataset() in EpochBasedTrainer
	3) Del build_dataset() in EpochBasedTrainer and renew a same name function.
11. Rename class Datasets to CustomDatasets in metainfo.py

Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/11872747

docs/source/api/modelscope.msdatasets.cv.rst

@@ -1,14 +0,0 @@
-modelscope.msdatasets.cv
-================================
-
-.. automodule:: modelscope.msdatasets.cv
-
-.. currentmodule:: modelscope.msdatasets.cv
-
-.. autosummary::
-    :toctree: generated
-    :nosignatures:
-    :template: classtemplate.rst
-
-    easycv_base.EasyCVBaseDataset
-    image_classification.ClsDataset

docs/source/api/modelscope.msdatasets.dataset_cls.custom_datasets.rst

@@ -0,0 +1,41 @@
+modelscope.msdatasets.dataset_cls.custom_datasets
+====================
+
+.. automodule:: modelscope.msdatasets.dataset_cls.custom_datasets
+
+.. currentmodule:: modelscope.msdatasets.dataset_cls.custom_datasets
+
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+    :template: classtemplate.rst
+
+    EasyCVBaseDataset
+    TorchCustomDataset
+    MovieSceneSegmentationDataset
+    ImageInstanceSegmentationCocoDataset
+    GoproImageDeblurringDataset
+    LanguageGuidedVideoSummarizationDataset
+    MGeoRankingDataset
+    RedsImageDeblurringDataset
+    TextRankingDataset
+    VecoDataset
+    VideoSummarizationDataset
+    BadImageDetectingDataset
+    ImageInpaintingDataset
+    ImagePortraitEnhancementDataset
+    ImageQualityAssessmentDegradationDataset
+    ImageQualityAssessmentMosDataset
+    ReferringVideoObjectSegmentationDataset
+    SiddImageDenoisingDataset
+    VideoFrameInterpolationDataset
+    VideoStabilizationDataset
+    VideoSuperResolutionDataset
+    SegDataset
+    FaceKeypointDataset
+    HandCocoWholeBodyDataset
+    WholeBodyCocoTopDownDataset
+    ClsDataset
+    DetImagesMixDataset
+    DetDataset

docs/source/api/modelscope.msdatasets.dataset_cls.rst

@@ -0,0 +1,15 @@
+modelscope.msdatasets.dataset_cls
+====================
+
+.. automodule:: modelscope.msdatasets.dataset_cls
+
+.. currentmodule:: modelscope.msdatasets.dataset_cls
+
+
+.. autosummary::
+    :toctree: generated
+    :nosignatures:
+    :template: classtemplate.rst
+
+    ExternalDataset
+    NativeIterableDataset

docs/source/api/modelscope.msdatasets.ms_dataset.rst

@@ -10,5 +10,4 @@ modelscope.msdatasets.ms_dataset
     :nosignatures:
     :template: classtemplate.rst
 
-    MsMapDataset
     MsDataset