Adding ESP32MSGraph

[riraosan]

Hi. @ArduinoBot
I would like to merge.

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/riraosan/ESP32MSGraph:

Linting library in ESP32MSGraph
INFO: No header file found matching library name (ESP32_Microsoft_Graph.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 value ESP32 Microsoft Graph is longer than the recommended length of 16 characters.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format     
         (Rule LP010)                                                                                               
WARNING: library.properties name ESP32 Microsoft Graph 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: Sketch(es) found outside examples and extras folders:                                    
           ESP32MSGraph/exsample/00_basic                                                         
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#library-examples
         (Rule LD003)                                                                             
WARNING: No example sketches found. Please provide examples.                                      
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#library-examples
         (Rule LD004)                                                                             
WARNING: Potentially misspelled examples folder name found: ESP32MSGraph/exsample                 
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#library-examples
         (Rule LD005)                                                                             

Linter results for project: 0 ERRORS, 5 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/riraosan/ESP32MSGraph/