* adding the setTabText to the QTabWidgetWrap definition
* implementing the setTabText funciton in the cpp module
* implementing the setTabText in the ts module
* adding a demo for the tab text change feature
* fixing lint issues
* exporting the QSettings enums
* initial qsettings implementation
* fix qsettings object constructor initialization
* added sync method
* added setValue method
* implemented value method
* pass actual app name and org name
* accept any value that can be converted to QVariant in setValue method
* implemented value method with proper QVariant wrap
* added tests
* removed testing data, fixed warning
* fixed cpp linting