[HOLD] Load default view

[brimoor]

Adds a @voxel51/utils/load_default_view operator that will load a default saved view, if one is registered, whenever datasets are opened in the App.

TODO BEFORE MERGING

• not sure we actually want this operator in @voxel51/utils as we should be sensitive to avoid too many things happening on_dataset_open in core plugins...

Example usage

from datetime import datetime, timedelta
from random import random

import fiftyone as fo
import fiftyone.zoo as foz

dataset = foz.load_zoo_dataset("quickstart")

# Add some dates
now = datetime.now()
collected_on = [now - timedelta(days=365 * random()) for _ in range(len(dataset))]
dataset.set_values("collected_on", collected_on)
dataset.create_index("collected_on")

# Configure a default view
view = dataset.sort_by("collected_on", reverse=True)
dataset.save_view("collected_on", view)
dataset.info["default_view"] = "collected_on"
dataset.save()

# Should automatically load `collected_on` view
session = fo.launch_app(dataset)

session.dataset = None

# Should automatically load `collected_on` view
session.dataset = dataset

[imanjra]

Tested locally. LGTM

[imanjra]

Cool!

not ready to merge yet