Krispy Kreme Doughnuts and Lionsgate have teamed up to promote the release of Saban's Power Rangers with the launch of Krispy Kreme's first-ever digital shop and real-life Power Rangers doughnuts. Saban's Power Rangers hits theaters nationwide on March 24. (Photo: Business Wire) Digital shop experience in City of Angel Grove gives consumers first taste of movie WINSTON-SALEM,…