fix c# fr

Author: millotp

generators/src/main/java/com/algolia/codegen/cts/manager/CSharpCTSManager.java

@@ -29,6 +29,7 @@ public void addTestsSupportingFiles(List<SupportingFile> supportingFiles) {
   @Override
   public void addSnippetsSupportingFiles(List<SupportingFile> supportingFiles) {
     supportingFiles.add(new SupportingFile("snippets/src.csproj.mustache", "snippets/csharp/src/src.csproj"));
+    supportingFiles.add(new SupportingFile("snippets/Program.mustache", "snippets/csharp/src/Program.cs"));
     supportingFiles.add(new SupportingFile("snippets/.gitignore.mustache", "snippets/csharp/.gitignore"));
     supportingFiles.add(new SupportingFile("snippets/Algolia.mustache", "snippets/csharp/Algolia.sln"));
     supportingFiles.add(new SupportingFile("snippets/dotnet-tools.mustache", "snippets/csharp/.config/dotnet-tools.json"));

templates/csharp/snippets/Program.mustache

@@ -0,0 +1,4 @@
+public class Program	
+{	
+  public static void Main() { }	
+}