added new pages to settings. rearranged security section for settings.

src/App/Pages/Settings/SettingsAboutPage.cs

@@ -0,0 +1,24 @@
+using System;
+using Bit.App.Controls;
+using Xamarin.Forms;
+
+namespace Bit.App.Pages
+{
+    public class SettingsAboutPage : ExtendedContentPage
+    {
+        public SettingsAboutPage()
+        {
+            Init();
+        }
+
+        public void Init()
+        {
+            // TODO: version, credits, etc
+
+            var stackLayout = new StackLayout { };
+
+            Title = "About bitwarden";
+            Content = stackLayout;
+        }
+    }
+}