序号添加状态枚举类，及相应的修改
解决冲突
Merge branch 'master' of https://github.com/UniCloud/FRP

Conflicts:
	Domain.PartBC/Aggregates/SnRegAgg/SnRegFactory.cs
	UniCloud.Presentation.Part/ManageSCN/CompareScnVm.cs
	UniCloud.Presentation.Service.Part/Part/ScnDTO.cs