Override hash() in ORKBooleanAnswerFormat
Override hash() in ORKBooleanAnswerFormat

chb/ResearchKit,jeremiahyan/ResearchKit,mluedke2/ResearchKit,mluedke2/ResearchKit,jeremiahyan/ResearchKit,chb/ResearchKit,chb/ResearchKit,jeremiahyan/ResearchKit,mluedke2/ResearchKit,chb/ResearchKit