HER TURN? "The Women of Country" on CBS tonight at 8 (F12) highlights country music queens past, present and future. Still, women musicians chart only 20% to 30% of country hit singles. Local favorite Jann Browne recently returned to Orange County after two years without making a record deal in Nashville. . . . "We need more female producers, songwriters, and especially more female (radio) program directors," she complains. "Nobody's trying to remove great male singers from the charts. But maybe it's time to say, 'Scoot over, we're here.' "