[Library Manager] Please add ESP_AT_Lib Library

[khoih-prog]

Please add ESP_AT_Lib to Library Manager. Thanks.

This is an ESP8266/ESP32 wrapper library for Arduino providing an easy-to-use way to manipulate ESP8266/ESP32-AT shields.

This library is based on, modified and improved from ITEADLIB_Arduino_WeeESP8266

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Releases v1.0.0

1. Add support to nRF52 (AdaFruit Feather nRF52832, nRF52840 Express, BlueFruit Sense, Itsy-Bitsy nRF52840 Express, Metro nRF52840 Express, NINA_B30_ublox, NINA_B112_ublox, etc.).
2. Add support to Adafruit SAMD21/SAM51 (Itsy-Bitsy M0/M4, Metro M0/M4, Grand Central M4, Feather M0/M4 Express, etc.).
3. Add support to STM32F, Teensy, SAM DUE.
4. Add support to ESP32-AT shields.
5. Add debug AT command output

[cmaglie]

Done.