Internal temperature sensor measurements

[elpiel]

Use the internal Pico W temperature sensor to track the temperature of the chip inside the frame.

• Use median and multiple readings (e.g. 10) in order to get a more accurate temperature Feat: OBC for Raspberry PI Pico W #12

• Use a HistoryBuffer to store the last 30 readings, e.g. every 2 seconds for more accurate 1 minute reading - f32? Or better u16, u8

• Use another HistoryBuffer to store longer period of time with less accuracy, e.g. u8