convert python program to C for embedding in esp32 microcontroller

it's about rewrinting existing library of zksoftware (zkteco family) attendance machine. [login to view URL] wich work pretty well this library is in python and we want to convert it to ESP-IDF C/C++ for running on esp32 microcontroller so the main task is complete rewrite of [login to view URL] to be able t compile it on ESP-IDF C/C++ and do test on ESP-IDF C/C++