Add --all option to path

[IlanCosman]

path filter foo bar baz / path is foo bar baz currently return whether any of foo, bar, or baz pass the filtering criteria.

To check whether all the arguments pass the filter, you currently need to use the terrible double-negate:

not path filter --invert foo bar baz

which is obviously very unergonomic and not fun to reason about.

I propose adding a --all option to path filter to make this useful functionality simpler.