Change style for splitting on commas

[b-chu]

What does this PR do?

Splits imports in the following way

from composer.algorithms.low_precision_groupnorm.low_precision_groupnorm import (LowPrecisionGroupNorm,
                                                                                 apply_low_precision_groupnorm)

from composer.algorithms.low_precision_groupnorm.low_precision_groupnorm import (
    LowPrecisionGroupNorm,
    apply_low_precision_groupnorm,
)

Changes function arguments in the following way:

    freeze_percentage = _freeze_schedule(current_duration=current_duration,
                                         freeze_start=freeze_start,
                                         freeze_level=freeze_level)

    freeze_percentage = _freeze_schedule(
        current_duration=current_duration,
        freeze_start=freeze_start,
        freeze_level=freeze_level,
    )

What issue(s) does this change relate to?

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[mvpatel2000]

LGTM, one weird format