If you’ve read or watched any of the coverage of Shirley Temple’s death in the last two weeks, you’ve probably seen a mention of Bill “Bojangles” Robinson, the dazzling tap dancer who co-starred with Temple in some of her most memorable films. Temple probably had no idea at the time, but her dance routines with “Uncle Billy” were remarkable not only for their seemingly effortless precision and beauty, but also because they managed to shatter…