1.3.1 release

In this update:

• Add recursion helper
• Add increase tap area for button
• Add classes for UI components
• Add placeholder view
• Add custom class for UIAlertControlle
• Add AppThemeManager, update example
• Add a class for building ui elements and setting constraint
• Add class for sending events
• Add support macOS
• Add measure helper methods for debug
• Add new callback types
• Add code documentation
• Update readme