* iButton: Add DS1971 Support refactored for v2
* Fix requested by gsurkov
* Fix DALLAS_COMMON_CMD_* use, cusotm data field to Eeprom and COPY_SCRAPTCHPAD
* Fix Emulation + Memory Info + Docs
* Fix docs, strings, refactor code
Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com>
Co-authored-by: あく <alleteam@gmail.com>
