[EC-528] Refactor Custom Fields into separate components (#1662)

* Refactored CustomFields to stop using RepeaterView and use BindableLayout and divided the different types on different files and added a factory to create them

* Fix formatting

src/App/Utilities/BoxRowVsBoxRowInputPaddingConverter.cs

@@ -0,0 +1,24 @@
+using System;
+using Xamarin.Forms;
+
+namespace Bit.App.Utilities
+{
+    public class BooleanToBoxRowInputPaddingConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter,
+            System.Globalization.CultureInfo culture)
+        {
+            if (targetType == typeof(Thickness))
+            {
+                return ((bool?)value).GetValueOrDefault() ? new Thickness(0, 10, 0, 0) : new Thickness(0, 10);
+            }
+            throw new InvalidOperationException("The target must be a thickness.");
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter,
+            System.Globalization.CultureInfo culture)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}