factories: make toApiFunctionSet use ApiCache._setApiClassFromMayaInheritance
factories: make toApiFunctionSet use ApiCache._setApiClassFromMayaInheritance

juggernate/pymel,AtonLerin/pymel,leonsooi/pymel,shrtcww/pymel,shrtcww/pymel,david-lassonde-adsk/pymel,assumptionsoup/pymel,leonsooi/pymel,juggernate/pymel,assumptionsoup/pymel,AtonLerin/pymel,david-lassonde-adsk/pymel