Bugfix: EDGE-T iterative manages correctly the demand from Hybrid Electric vehicles.

Created by: MariannaR

Bugfix in the iterative EDGE-T: hybrid electric vehicles, being duel fuel, are not mapped to a single final energy source. A redistribution on the energy demand on electricity and liquids takes place in the function shares_intensity_and_demand: the correct output of the function is now used for the remaining of the script.