* Added file system wrapper and interface
* added win32program repository which would load store app and also handle new apps being added/deleted
* Added event handlers to win32 program repo
* added paths to monitor and setting FSWs for each location
* Events firing as expected
* filter extensions added, events fire as expected
* override gethashcode so that duplicates don't show up. OnCreated and OnDeleted events trigger as expected
* implemented setter for filters in FileSystemWatcher
* Rename adds item but does not seem to delete the previous app
* catching an exception when a duplicate item is inserted
* Removed notify filter for directory because we only need to monitor files
* Added exe programs to be indexed in the desktop and startmenu
* created a new class to init FileSystemHelpers instead of main
* Added fix for shortcut applications to work as expected while renaming and deleting them
* Added wrappers for file system operations
* Added some tests
* Added all tests for appref-ms and added a condition to search in sub directories
* Added tests for Exe applications
* Added lnk app tests
* Added tests for shortcut applications
* removed unnecessary wrappers
* override Equals for win32
* removed debug statements
* Fixed exe issue
* Fixed internet shortcut exception
* fixed renaming shortcut apps
* Added a retry block for ReadAllLines
* capitalized method name - RetrieveTargetPath
* made naming consistent, helper variables start with underscore
* Added the exception condition back
* renamed Win32ProgramRepositoryHelper to Win32ProgramFileSystemWatchers
* made win32Program repository variable static
* changed list to ilist
* disposed file system watchers
* make retrieveTargetPath upper case in tests
