This update brings the major API overhaul from libcomposition which switches it from a mass-fraction based tracker to a molar abundance based tracker. We haeve update the python bindings to reflect this. Further we have added iterator support to the Composition bindings
This version bump introduces safer handling of az_to_species (using std::expected) and marks az_to_species as no except as the only exception that could be thrown is std::bad_alloc which is an unrecoverable fault condition
