[external spectral libraries] add Massbank

[Adafede]

Is your feature request related to a problem? Please describe.
As a user, I would like to be able to match my spectra against Massbank library(ies?).

Describe the solution you'd like
A simple step performing spectral matching against Massbank as already implemented for CFM-ID in silico libraries

Describe alternatives you've considered
Using RMassbank

Additional context
Look at https://zenodo.org/record/8014263
Eventually ask @meowcat for guidance
See how well it is linked to https://gnps-external.ucsd.edu/gnpslibrary and which option is better

[Adafede]

See MassBank/MassBank-data#238

[Adafede]

See 06a0ff4