Glass Animals’ “Heat Waves” continues to reign over the Billboard Hot 100 chart for a fifth week. “Heat Waves,” released on Wolf Tone/Polydor/Republic Records, drew 65.1 million radio airplay audience impressions and 14.8 million U.S. streams, down 2% in each metric, and sold 2,800 downloads, down 3%, in the March 25-31 tracking week, according to…