NimBLEDevice::get/setPower support full power range.

[thekurtovic]

32	-12.0 ~  9.0 dbm	https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf#page=17
S3	-24.0 ~ 20.0 dBm	https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf#page=71
C2	-12.0 ~  9.0 dbm	https://docs.espressif.com/projects/esp-idf/en/v5.1/esp32c2/api-reference/bluetooth/controller_vhci.html#header-file
C3	-24.0 ~ 20.0 dBm	https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf#page=60
C6	–15.0 ~ 20.0 dBm	https://www.espressif.com/sites/default/files/documentation/esp32-c6_datasheet_en.pdf#page=69
H2	–24.0 ~ 20.0 dBm	https://www.espressif.com/sites/default/files/documentation/esp32-h2_datasheet_en.pdf#page=58