Update FanOnOff to be included in components

Update AirLoopHVACUnitaryHeatPumpAirToAir,
ZoneHVACPackagedTerminalAirConditioner, and
ZoneHVACPackagedTerminalHeatPump to allow FanOnOff.

Update containingHVACComponent and containingZoneHVACComponent to find
the HVACComponent with the FanOnOff object.

Update unit tests.