Add 7Semi RS485 Temperature-Humidity Arduino Library

[7semi-Tech]

This PR adds the 7Semi RS485 Temperature-Humidity Arduino Library to the Arduino Library Manager index.

Repository URL:
https://github.com/7semi-solutions/7Semi_RS485_Temperature-Humidity-Arduino-Library

This library supports temperature and humidity sensors over RS-485 communication, offering robust long-distance sensor networking. Example sketches and configuration options are included.

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/7semi-solutions/7Semi_RS485_Temperature-Humidity-Arduino-Library:

Linting library in 7Semi_RS485_Temperature-Humidity-Arduino-Library
INFO: No header file found matching library name (7Semi-RS485-Temperature-Humidity-Probe-Arduino-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 value 7Semi-RS485-Temperature-Humidity-Probe-Arduino-Library is longer than the        
         recommended length of 32 characters.                                                                           
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format         
         (Rule LP010)                                                                                                   
WARNING: Library name 7Semi-RS485-Temperature-Humidity-Probe-Arduino-Library contains "Arduino". This is superfluous.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format      
         (Rule LP014)                                                                                                
WARNING: Library name 7Semi-RS485-Temperature-Humidity-Probe-Arduino-Library contains "library". This is superfluous.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format      
         (Rule LP016)                                                                                                
WARNING: Invalid category field value Sensor in library.properties                                             
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP038)                                                                                          

Linter results for project: 0 ERRORS, 4 WARNINGS

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Linting sketch in 7Semi_RS485_Temperature-Humidity-Arduino-Library/examples/Basic

Linter results for project: no errors or warnings

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

Linter results for projects: 0 ERRORS, 4 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/7semi-solutions/7Semi_RS485_Temperature-Humidity-Arduino-Library/