* Update platformio inis for stm32 platform and wio-e5 variant for enabling i2c
* Don't reference timezone functions if MESHTASTIC_EXCLUDE_TZ is defined
* Use custom pow_of_two in RadioInterface instead of floating-point pow()
* First pass: enable sensors for STM32wL
* Fix AirQualityTelemetryModule being created if the PM25AQI header is missing
* Link in power sensor libraries
* more ini tweaks
* Add =1 to EXCLUDE defines, fix indentation.
* Drop HAS_WIRE in ini, it's defined in architecture.h
* Fix build when power sensor libraries are missing
Make MAX sensor integration into Power.cpp optional based on its library header existing.
Also make NullSensor expose a voltage and current sensor, because Power calls directly into these for INA sensors.
This lets us remove all the deps for the STM32WL platform.
* Change default I2C for RAK3172 to be I2C1, not I2C2
* Respect the laws of mathematics (oops)
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