Adding support for translations (#218)

* Added translation support for articles, sections and categories.
Only added to main project, not to net3.5 or mobile. Those projects won't build.

* Finishing up translations, but proper category support is missing, so the test won't work. waiting for rebase with fix.

* finished translation tests, they all pass now.
Missing async support.

* Added Async Help Center Translation functions and tests.

The section translation test fails becuase I forgot to fix the async section function first. This will pass once that's merged in.

* added sideload support to the Async Help Center Get Article function, to support loading translations with the article.
Added unit tests for the Sync and Async Get Article with translations.

src/Tests/HelpCenter/ArticleTests.cs

@@ -19,7 +19,15 @@ public void CanGetSingleArticle()
             Assert.IsNotNull(res.Arcticle);
         }
 
-        [Test]
+		[Test]
+		public void CanGetSingleArticleWithTranslations()
+		{
+			var res = api.HelpCenter.Articles.GetArticle( _articleIdWithComments, ArticleSideLoadOptionsEnum.Translations );
+			Assert.IsNotNull( res.Arcticle );
+			Assert.Greater( res.Arcticle.Translations.Count, 0 );
+		}
+
+		[Test]
         public void CanGetArticles()
         {
             var res = api.HelpCenter.Articles.GetArticles();
@@ -139,7 +147,15 @@ public void CanCreateUpdateAndDeleteArticles()
             Assert.True(api.HelpCenter.Articles.DeleteArticle(res.Arcticle.Id.Value));
         }
 
-        [Test]
+		[Test]
+		public void CanGetSingleArticleWithTranslationsAsync()
+		{
+			var res = api.HelpCenter.Articles.GetArticleAsync( _articleIdWithComments, ArticleSideLoadOptionsEnum.Translations ).Result;
+			Assert.IsNotNull( res.Arcticle );
+			Assert.Greater( res.Arcticle.Translations.Count, 0 );
+		}
+
+		[Test]
         public void CanGetArticlesAsync()
         {
             var res = api.HelpCenter.Articles.GetArticlesAsync().Result;