This is a modification of https://github.com/juano2310/HX711ADC HX711 library for the Avia Semiconductor HX711 24-Bit Analog-to-Digital Converter for scales (load cells) (ADC / LCA) [Datasheet: http://www.dfrobot.com/image/data/SEN0160/hx711_english.pdf]
24bit to 32bit signed interger conversion