* Updated UnregisteredApps code
* Added file type checking code and Folder and File classifications
* Added more file formats
* Removed run as admin for lnk folders
* Added script files as executable and changed hashset to case insensitive
* Removed runasadmin for generic files
* Removed FileTypes enum
* Extended ApplicationTypes enum
* Fix file format error
* Cleaned use of ApplicationType enum to public and match AppType and used ApplicationType in OnAppRenamed
* Modify tests to use ApplicationType enum
* Added tests for new App types
* Modified dummy appref
* Mock Directory.Exists and add tests for GetAppTypeFromPath
* Combined tests
