Feat: add mbsdk video dataset samples

[morgandu]

• create_and_import_dataset_video_sample.py
• create_and_import_dataset_video_sample_test.py
• import_data_video_action_recognition_sample.py
• import_data_video_action_recognition_sample_test.py
• import_data_video_classification_sample.py
• import_data_video_classification_sample_test.py
• import_data_video_object_tracking_sample.py
• import_data_video_object_tracking_sample_test.py

[snippet-bot]

Here is the summary of changes.

You are about to add 4 region tags.

• samples/model-builder/create_and_import_dataset_video_sample.py:20, tag aiplatform_sdk_create_and_import_dataset_video_sample
• samples/model-builder/import_data_video_action_recognition_sample.py:20, tag aiplatform_sdk_import_data_video_action_recognition_sample
• samples/model-builder/import_data_video_classification_sample.py:20, tag aiplatform_sdk_import_data_video_classification_sample
• samples/model-builder/import_data_video_object_tracking_sample.py:20, tag aiplatform_sdk_import_data_video_object_tracking_sample

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