adding Adafruit AS7331

[BlitzCityDIY]

Adding Adafruit_AS7331

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/adafruit/Adafruit_AS7331:

Linting library in Adafruit_AS7331
INFO: No header file found matching library name (Adafruit_AS7331_Library.h). Best practices are for primary header     
      filename to match library name.                                                                                   
      See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format            
      (Rule LS008)                                                                                                      
WARNING: library.properties name Adafruit AS7331 Library contains spaces. Although supported, best practices is to not  
         use spaces.                                                                                                    
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format         
         (Rule LP015)                                                                                                   
WARNING: Library name Adafruit AS7331 Library contains "library". This is superfluous.                         
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP016)                                                                                          
WARNING: Sketch(es) found outside examples and extras folders:                                    
           Adafruit_AS7331/hw_tests/01_minimal_begin                                              
           Adafruit_AS7331/hw_tests/02_begin_test                                                 
           Adafruit_AS7331/hw_tests/03_busio_test                                                 
           Adafruit_AS7331/hw_tests/04_reset_test                                                 
           Adafruit_AS7331/hw_tests/05_gain_test                                                  
           Adafruit_AS7331/hw_tests/06_integration_time_test                                      
           Adafruit_AS7331/hw_tests/07_divider_test                                               
           Adafruit_AS7331/hw_tests/08_break_time_test                                            
           Adafruit_AS7331/hw_tests/09_clock_freq_test                                            
           Adafruit_AS7331/hw_tests/10_standby_test                                               
           Adafruit_AS7331/hw_tests/11_edge_count_test                                            
           Adafruit_AS7331/hw_tests/12_measurement_mode_test                                      
           Adafruit_AS7331/hw_tests/13_status_test                                                
           Adafruit_AS7331/hw_tests/14_uv_led_test                                                
           Adafruit_AS7331/hw_tests/15_uv_led_toggle_test                                         
           Adafruit_AS7331/hw_tests/16_irradiance_test                                            
           Adafruit_AS7331/hw_tests/17_oneshot_test                                               
           Adafruit_AS7331/hw_tests/18_ready_pin_test                                             
           Adafruit_AS7331/hw_tests/19_sync_pulse_test                                            
           Adafruit_AS7331/hw_tests/20_diag_test                                                  
           Adafruit_AS7331/hw_tests/pwm_demo                                                      
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#library-examples
         (Rule LD003)                                                                             

Linter results for project: 0 ERRORS, 3 WARNINGS

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

Linting sketch in Adafruit_AS7331/examples/AS7331_TFT_demo

Linter results for project: no errors or warnings

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

Linting sketch in Adafruit_AS7331/examples/fulltest

Linter results for project: no errors or warnings

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

Linter results for projects: 0 ERRORS, 3 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/adafruit/Adafruit_AS7331/