说明初学者工具包的创建过程。
简单的包的创建过程： 我们一直都想降低创建和分享代码的门槛，无论是在Visual Studio里面还是外面。
Simple package creation: We constantly want to lower the bar for creating and sharing code from inside and outside of Visual Studio.
注意到中间的XML文件是从模型的各个程序包中创建的。
Note that intermediate XML files are created for every package in the model.
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