Extend Langauge Manager Add On - Support for Azure Custom Translator

Customers want the flexibility to customise Azure Translations. This can be accomplished by uploading training files through https://portal.customtranslator.azure.ai/

The Language Manager Add On does not support custom translations.

1. Extend Admin UI

To add that support - extend the Language Manager Admin interface add a "Category Guid" optional property under Provider Settings->Subscription Region (the category guid is required in the API request for custom translator)

2. Update Code Behind

Update the code in this class EPiServer.Labs.LanguageManager.Business.Providers.CognitiveTranslatorProvider

to append the category guid as a query string when it is entered such as in the following sample code

var url = $"https://api.cognitive.microsofttranslator.com/translate?api-version=3.0&from={(object)fromLang}&to={(object)toLang}&textType=html";

// adding the category guid instructs the request to use Custom Translator

if (!string.IsNullOrEmpty(categoryGuid))

{

url = $"{url}&category=\"{categoryGuid}";

}