wep api 2 加入 依賴注入
專案底下加入 autofac and automapper
1.
Install-Package Autofac -Version 4.9.4
2.
Install-Package AutoMapper -Version 9.0.0
3. 加入 autofacConfig , automapperModule

automapperModule 繼承aufac Module
autofacconfig.cs 內容 ,注入 di的內容

createMap 的 繼承profile

參考
https://docs.autofac.org/en/latest/configuration/modules.html
http://www.protomatter.co.uk/blog/development/2017/02/modular-automapper-registrations-with-autofac/