OLYMPIA, Wash. — The cavernous stores in Costco's home state lack something you can find in its warehouses in California, Alaska and many other places: bottles of Maker's Mark, Absolut vodka and other popular brands of hard liquor.But two ballot measures on the November ballot — one heavily backed by Issaquah-based Costco Wholesale Corp. — would largely sweep away Washington's post-Prohibition restrictions on liquor.