Olive farms and hippie mountain towns await — There are plenty of best-of lists of favorite roadside stops on the L.A.-to-S.F. drive. But in recent years, many NorCal residents are decamping not to SoCal, but to the Pacific Northwest. The Portland Tribune reports that 40,000 Californians move to Oregon every year, while 20,000 Oregonians move to California. That’s…