add lib AIS_4G_EXTENSION_BOARD

[BinaryBearzz]

add our library for our devkit, it library for Extension board compatible hardware (ESP32)

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/AIS-DeviceIntegration/AIS_4G_EXTENSION_BOARD:

Linting library in AIS_4G_EXTENSION_BOARD
WARNING: Sketch(es) found outside examples and extras folders:                                    
           AIS_4G_EXTENSION_BOARD/src/Includes/BH1750/examples/BH1750advanced                     
           AIS_4G_EXTENSION_BOARD/src/Includes/BH1750/examples/BH1750autoadjust                   
           AIS_4G_EXTENSION_BOARD/src/Includes/BH1750/examples/BH1750onetime                      
           AIS_4G_EXTENSION_BOARD/src/Includes/BH1750/examples/BH1750test                         
           AIS_4G_EXTENSION_BOARD/src/Includes/BH1750/examples/BH1750two_i2c                      
           AIS_4G_EXTENSION_BOARD/src/Includes/DFRobot_SHT20/examples/getHumidityAndTemperature   
           AIS_4G_EXTENSION_BOARD/src/Includes/PCA9557-arduino/examples/PCA9557_test              
           AIS_4G_EXTENSION_BOARD/src/Includes/PCF8563-Arduino-Library-master/examples/CLKOUT     
           AIS_4G_EXTENSION_BOARD/src/Includes/PCF8563-Arduino-Library-master/examples/simple     
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_EID_firmware                  
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_I2Cspeed                      
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_demo                          
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_demo_ESP32                    
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_demo_ESP32_2                  
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_demo_async                    
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_heater                        
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_heaterLevel                   
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_isConnected                   
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_lastRead                      
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_nolib                         
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_rawValues                     
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_resolution                    
           AIS_4G_EXTENSION_BOARD/src/Includes/SHT2x/examples/SHT2x_test_CRC                      
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#library-examples
         (Rule LD003)                                                                             

Linter results for project: 0 ERRORS, 1 WARNINGS

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/AnalogRead_Input

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/BH1750_LightSensor

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Calibrate_Soil_moisture

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Digital_IO_D3

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Digital_Input_D1_D2

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Magellan_extension_stardardcode

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Magellan_extension_stardardcode_v1

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/ON_OFF_Relay

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/RTC_Clock

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/RTC_Clock_SyncTime

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/SHT20_SensorReadTemp

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/SHT20_X_SensorReadTemp

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/ScanExtensionIsAvailable

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/Soil_moisture

Linter results for project: no errors or warnings

-------------------

Linting sketch in AIS_4G_EXTENSION_BOARD/examples/XY_MD02_RS485

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 0 ERRORS, 1 WARNINGS

[github-actions]

Your submission has now been accepted! Thanks for your contribution to the Arduino Library Manager index.

The library(s) will be available for installation via Library Manager within a day's time.

You can check the logs from the Library Manager indexer for your library(s) here:
http://downloads.arduino.cc/libraries/logs/github.com/AIS-DeviceIntegration/AIS_4G_EXTENSION_BOARD/