HtmlLocalizer<T> should look for resource name with or without the application name prefix

[DamianEdwards]

Same as aspnet/Localization#167

Make HtmlLocalizer<T> use a resource base name without the application name prefix, then look for it with the prefix. It should of course still honor the value of LocalizationOptions.ResourcesPath too.

e.g. where T is MyApp.Controllers.HomeController, HtmlLocalizer<HomeController> would first look for a resource with base name "MyApp.Controllers.HomeController", and then "Controllers.HomeController".

[DamianEdwards]

This was automatically covered by aspnet/Localization#167