Update SurveyLib and moved all AddScoped to DI methods

SurveyBackend/SurveyBackend.Services/DependencyInjection.cs

@@ -0,0 +1,27 @@
+using Microsoft.Extensions.DependencyInjection;
+using SurveyBackend.Core.Services;
+using SurveyBackend.Services.Helpers;
+using SurveyBackend.Services.Services;
+using SurveyLib.Core.Services;
+
+namespace SurveyBackend.Services;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddSurveyBackendServices(this IServiceCollection services)
+    {
+        services.AddScoped<IUserService, UserService>();
+
+        services.AddScoped<IPasswordHasher, Sha256PasswordHasher>();
+
+        services.AddScoped<IAuthorizationService, AuthorizationService>();
+        
+        services.AddScoped<ISurveyService, SurveyService>();
+        services.AddScoped<IQuestionService, QuestionService>();
+        services.AddScoped<IAnswerVariantsService, AnswerVariantsService>();
+        services.AddScoped<ICompletionService, CompletionService>();
+        services.AddScoped<IAnswerService, AnswerService>();
+        
+        return services;
+    }
+}