AMSTERDAM — The families of the 2018 Schoharie limousine disaster have fulfilled a promise they made in the wake of the preventable accident that claimed 20 lives — to make the world a safer place by imposing new safety regulations for limousines with the support of federal lawmakers.“We made a promise we were going to make a difference, because there is no way on Earth we were going to lose our children, our spouses, our siblings, our family members and let it go unnoticed,” said Jill Richardson-Perez, the mother of crash victim Matthew Coons, on Friday.Families of the accident victims…