Basic Password Validation on a seperate screen
Changed spacing between ToggleButton and Text in Settings Page
Added a Page Bacground - WALLPAPER
Merge branch 'new-password-view' into live-tile

Conflicts:
	Lib/ApplicationHelper.cs
	MedicinesCatalogue.csproj
	Views/Settings.xaml
Added a nice background for password page
[Bug] Corrected Max Password length bug in Settings Page. Corrected Update Medicine error
[Bug] Now showing default image on clicking cross button on Image preview
Corrected all titles on all pages. Changed namespace of MainViewModel
Search extensibility few corrections. Yet to correct the UI
Completed Search Extensibility
Search extensibility clean up
Submission: 2nd attempt