Added the Fastsim to the multipliers code (Test now fails)
Added the Fastsim to the multipliers code (Test now fails)

deekshadangwal/PyRTL,UCSBarchlab/PyRTL,nvandervoort/PyRTL,deekshadangwal/PyRTL,nvandervoort/PyRTL,UCSBarchlab/PyRTL