Contemporary vocalists making their major-label debuts hope that 1992 will prove another Year of the New Face in country music: Like Lee Greenwood, Collin Raye began his career in the hotels of Nevada, perfecting a generic brand of glossy country music. That lack of original style is both the strength and the weakness of All I Can Be, memorable mostly for ”Love, Me,” a sentimental No. 1 hit about enduring love among the grandparent set. C+