[Feature request] add option to choose baro temp source

[hyperion11]

Please add option to choose baro temp source 🙄
press_abs or press_abs2, or better use press_abs2 if exists, because press_abs duplicate imu_temp generally
https://ardupilot.org/copter/docs/common-baro-external.html
it can be useful to monitor battery or air wifi card temperature