* add support for ams5915 and ams6915 temerature and pressure sensors
* improved function namings
* optimized detection of sensor
* set verbosity level to debug
* minor code cleanings
* added seconds-counter to minimize i2c bus load, minor code cleanups
* add meas_valid in sensor struct to differentiate between sensor present (at tasmota boot) and measurement valid (if sensor was reattached) at runtime
* removed global struct and sensor_present, introduced dynamic memory allocation if sensor is present at startup, minor code changes
* fixes missing initialisation of variable
* corrected the amount of used memory if compiled with AMSX915 support
* Update my_user_config.h
disable AMSx915 by default
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Co-authored-by: baschdello <urschelb@rhrk.uni-kl.de>
Co-authored-by: Bastian <bastianurschel@gmail.com>
Bastian Urschel