added reference to Core

added empty implementations of repositories

SurveyLib.Infrastructure.EFCore/Repositories/AnswerRepository.cs

@@ -0,0 +1,42 @@
+using SurveyLib.Core.Models;
+using SurveyLib.Core.Repositories;
+
+namespace SurveyLib.Infrastructure.EFCore.Repositories;
+
+public class AnswerRepository : IAnswerRepository
+{
+    public Task<Answer>? GetByIdAsync(int id)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<IEnumerable<Answer>> GetAllAsync()
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task AddAsync(Answer entity)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task UpdateAsync(Answer entity)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task DeleteAsync(Answer entity)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<IEnumerable<Answer>> GetByAttemptIdAsync(int attemptId)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<IEnumerable<Answer>> GetByQuestionIdAsync(int questionId)
+    {
+        throw new NotImplementedException();
+    }
+}