Describe your changes

Added support for the Rongyida SMS gateway.

Submission Review Guidelines:

• I have performed a self-review of my code
• If it is a core feature, I have added thorough tests.
• Will this be part of a product update? If yes, please write one phrase about this update.
• I have reviewed my code for security best practices.
• Following the above guidelines will result in quick merges and clear and detailed feedback when appropriate.
• My code follows the style guidelines of this project
• I have updated the change-log in CHANGELOG.md.

Type of change

• Fix - Fixes an existing bug
• Add - Adds functionality
• Update - Update existing functionality
• Dev - Development related task
• Tweak - A minor adjustment to the codebase
• Performance - Address performance issues
• Enhancement - Improvement to existing functionality