NIELIT ESP32 Practicals Library - Quick Install

1. Arduino IDE -> Sketch -> Include Library -> Add .ZIP Library...
2. Select the NIELIT_ESP32_Practicals_Library ZIP.
3. Arduino IDE -> File -> Examples -> NIELIT ESP32 Practicals.
4. Select 2_1_Hardware_Inputs_Outputs ... 2_15_QR_Attendance_Firebase.

Install required third-party dependencies as described in README.md.
