Add footprint for ESP32-S{2,3}-MINI-1U
The footprints for the ESP32-S2-MINI-1U and ESP32-S3-MINI-1U are the same.
https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_mini-1u_datasheet_en.pdf
The footprints for the ESP32-S2-MINI-1U and ESP32-S3-MINI-1U are the same.
https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_mini-1u_datasheet_en.pdf