Switch Styles For Sketch

在Sketch中，通过快捷键control shift s 来交换选中的两个图层的样式

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
SwitchStyles.sketchplugin/Contents/Sketch		SwitchStyles.sketchplugin/Contents/Sketch
README.md		README.md
manifest.json		manifest.json
switch-styles.js		switch-styles.js

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