Band Depth Capability

[april-nellis]

Adds the capability to display band depth envelopes (as described in Curve Boxplot: Generalization of Boxplot for Ensembles of Curves) for spaghetti plots.

Currently, spaghetti_plot() is configured to not display these envelopes as the default behavior because its parameter band_depth_limit=None, but this functionality could be added in a future PR by changing this parameter to take on values between 0 and 1.

NOTE: Relies on PR 'Band depth envelope' in SMHviz_plot (midas-network/SMHviz_plot#17).

[jacobrklein20]

Proposed documentation to add:
"""
:param location: str used to construct path to sample file to load in visualization/data-visualization
:param target: str, 'inc hosp' or 'cum hosp'. Used to construct path to sample file to load in visualization/data-visualization
:param scenario: List[int], used to filter sample file
:param age_group: str, used to filter sample file
:param n_sample: int, number of samples to display
:param med_plot: bool, if True, median trajectory displayed
:param round_tab: str, name of Round (as seen in hub-config/viz_settings.json) to be used
:param band_depth_limit: float| None. If not None, will show an envelope in resulting spaghetti plot around trajectories with a band depth above this value. Band depth is a measure of the representativeness of one trajectory among an ensemble. For more details, see https://ieeexplore.ieee.org/document/6875964 - Curve Boxplot: Generalization of Boxplot for Ensembles of Curves by Mirzargar et al.
:return: go.Figure object result
"""