Welcome back to another edition of The Weekend Stream, The Second Disc’s review of notable catalogue titles making digital debuts, plus new works from legacy acts and even some personally curated favorites. Two major years linger in this latest column: 2006 (where two pop legends recorded blockbuster albums that are newly expanded) and 1976 (origin of no less than five left-field titles coming back into digital print). Beyoncé, B’DAY (20th ANNIVERSARY DELUXE EDITION) (Parkwood/Columbia) (Apple / Amazon) Two decades to the day after it was released (and, indeed, on her 45th birthday),…