* Open in App pop up implementation
* review comments addressed
* unit test cases added for open-in-app component and aca-mobile-app-switcher-service and review comments addressed
* cspell changes
* test case build failing issue resolved
* review comments addressed of using specific type and void in functions that do not return anything
* remaining review comments fixed for type cases
* added check for ipad and ipod
* checkForIOSDevice function removed and checked for ios device in same line
* spacing issues addressed
* missing unit tests added and some review comments addressed
* app.config.json file updated
* removed configuration variables from default Readme file
* used only boolean instead of string conversion in app service file
* session storage name change
* review comments addressed
