A US/Israeli startup, Sorbet — which is tackling what companies do with the financial risks as employees accrue Paid Time Off (PTO) — has raised $6 million in a Seed funding round led by Viola Ventures, with participation by Global Founders Capital, Meron Capital. The economics of Paid Time Off is relatively hidden in the business world, but essentially,Sorbet takes on the burden of this PTO from employers and then allows employees to spend it. This gives the employers far more control over the whole process and the ability to…