Introduce object-based user-level API for the data acquisition module.

src/owntech.ini

...yr/modules/owntech_data_acquisition/zephyr/CMakeLists.txt

zephyr/modules/owntech_data_acquisition/zephyr/adc/adc.c

zephyr/modules/owntech_data_acquisition/zephyr/adc/adc.h

...odules/owntech_data_acquisition/zephyr/adc/adc_channels.c

...odules/owntech_data_acquisition/zephyr/adc/adc_channels.h

...odules/owntech_data_acquisition/zephyr/data_acquisition.c

...data_acquisition/zephyr/data_conversion/data_conversion.c

...data_acquisition/zephyr/data_conversion/data_conversion.h

...ch_data_acquisition/zephyr/public_api/DataAcquisition.cpp

...tech_data_acquisition/zephyr/public_api/DataAcquisition.h

...uisition/zephyr/public_api/data_acquisition_error_codes.h

...data_acquisition/zephyr/public_include/data_acquisition.h