cellxgene-schema CLI is not correctly enforcing obs['is_primary_data']

[brianraymor]

Context

Reported by @jahilton. See #sci-data-eng.

[nayib-jose-gloria]

The issue here is that we currently accept both bool and numpy.bool types for 'is_single'. However, our validation check for is_primary_data checks against "is False" which only works as expected for bool.

These datasets used numpy.bool and thus unexpectedly passed by evaluating "numpy.bool(False) is False" as False instead of True.

The solution is to either update this check (and others) to account for numpy.bool OR enforce that we do not accept numpy.bool types. Probably easiest to just account for numpy._bool.