UtcDateTimeToLocalStringConverter
Converts the incoming value to a String local time represenation in the
datetime format provided.
Backing BindableProperty for the DateTimeFormat property.
Gets or sets the datetime format value of the provided datetime or datetimeoffset for
the UtcDateTimeToLocalStringConverter. This is a bindable property.
public UtcDateTimeToLocalStringConverter()
This method is not implemented and will throw a NotImplementedException.