CreateWxGroupAvator

#使用MagickNET 库生成微信群组九宫格头像头像例子如下

Name		Name	Last commit message	Last commit date
Latest commit History 6 Commits
BuildAvactor		BuildAvactor
.gitignore		.gitignore
BuildAvactor.sln		BuildAvactor.sln
BuildAvactor.v12.suo		BuildAvactor.v12.suo
README.md		README.md

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