Added arduino-btn99x0 library to registrar

[jaenrig-ifx]

No description provided.

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/Infineon/arduino-btn99x0:

Linting library in arduino-btn99x0
INFO: No header file found matching library name (MOTIX_BTN99x0.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 MOTIX BTN99x0 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: Invalid category field value Device control in library.properties                                     
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP038)                                                                                          
WARNING: Unable to load the library.properties url field: 404 Not Found                                        
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP042)                                                                                          

Linter results for project: 0 ERRORS, 3 WARNINGS

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

Linting sketch in arduino-btn99x0/examples/half_bridge

Linter results for project: no errors or warnings

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

Linting sketch in arduino-btn99x0/examples/shield_half_bridge

Linter results for project: no errors or warnings

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

Linting sketch in arduino-btn99x0/examples/shield_motor_control

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/Infineon/arduino-btn99x0/