When Arizona country music fans of yesteryear were looking to do some hootin’ and hollerin’ in the Valley, they headed for Mr. Lucky’s. The double-decker Phoenix nightclub and honky-tonk at Grand and 36th avenues was a go-to spot for country tunes and rowdy fun for almost four decades. First opened in October 1966 by Valley entrepreneur and restaurateur Bob Sikora, Mr. Lucky’s offered country artists in its main room and rock and pop bands in the basement…