重构项目结构，移除Assignment相关功能，优化Submission模块

TechHelper.Client/Content/AutoMapperProFile.cs

@@ -1,5 +1,4 @@
 using AutoMapper;
-using AutoMapper.Internal.Mappers;
 using Entities.Contracts;
 using Entities.DTO;
 using TechHelper.Client.Exam;
@@ -12,11 +11,8 @@ namespace TechHelper.Context
 		{
 			CreateMap<QuestionEx, QuestionDto>()
 				.ForMember(d => d.Options, o => o.MapFrom(s => string.Join(Environment.NewLine, s.Options.Select(op => op.Text))));
-			CreateMap<AssignmentQuestionEx, AssignmentQuestionDto>()
-				.ForMember(d=>d.Description, o=>o.Ignore());
-			CreateMap<AssignmentEx, AssignmentDto>();
-
-
+			CreateMap<ExamQuestionEx, ExamQuestionDto>();
+			CreateMap<ExamEx, ExamDto>();
 			CreateMap<AssignmentCheckData, Submission>();
 		}
 	}