Simplify Mapping

[neozhu]

refer to jasontaylordev/CleanArchitecture#871

Overview

Simplified the object-object mapping approach by removing IMapFrom and associated MappingProfile. Mappings can now be specified using a standard AutoMapper.Profile as nested classes or in separate files as appropriate.

Motivation

The previous approach was becoming cumbersome to maintain and didn't align well with our project requirements. Removing IMapFrom and the associated MappingProfile will streamline the mapping process and improve code clarity.

Changes Made

Removed IMapFrom and associated MappingProfile.
Introduced the use of AutoMapper.Profile as nested classes or in separate files for specifying mappings.
Updated the usage of AutoMapper to closely follow the AutoMapper Usage Guidelines.
Example
Here's an example of the new mapping approach:

public class TodoItemDto
{
    public int Id { get; init; }

    public string? Title { get; init; }

    public bool Done { get; init; }

    public int Priority { get; init; }

    private class Mapping : Profile
    {
        public Mapping()
        {
            CreateMap<TodoItem, TodoItemDto>().ForMember(d => d.Priority, 
                opt => opt.MapFrom(s => (int)s.Priority));
        }
    }
}

[Bram1903]

Perfect! It indeed increases code clarity, and looks way more structured!