v2.2.0

Changelog:

• Refactoring internal implementations
• Adjust the dialogs style
• Add functional entry
  • alert apply DialogAlert function
  • modal apply DialogModal function
  • toast apply DialogToast function
  • mask apply DialogMask function
  • collection of related tool functions DialogHelper
• Fixed no animation when closing mask dialog
• Fixed when modal dialog maximized, the dialog content area is not maximized (#39), closes #39
• Add global scroll bar management
• Add fullscreen property in modal dialog, maximize when opening modal dialog
• Add alert, toast header text overflow truncate