dotnet core log

1. Using lograte http://n.sfs.tw/content/index/12926
2.  https://www.nuget.org/packages/NLog.Config/
3. https://dotblogs.com.tw/ricochen/2018/04/06/024020
4 https://blog.yowko.com/asp-net-core-default-log-nlog-serilog/
5. https://medium.com/@WilliamWhetstone/net-core-project-%E5%BE%9E%E9%9B%B6%E9%96%8B%E5%A7%8B-nlog-b8effb9561f9
6. https://blog.johnwu.cc/article/ironman-day19-asp-net-core-nlog-log4net.html