a clean swift xcode template inspired by my friend Ni.
First, download the xcode template folder in the repository.
Second, open terminal and run cd /Applications/Xcode.app/Contents/Developer/Library/Xcode/Templates/File Templates/Source.
(If you are not using Xcode.app as your app name, just update to fit yours.)
Last, drag the xcode template folder into Source folder, and all is done.
You can not edit xcode template files after the template is dragged into that Source folder, if you'd like to edit the xcode template, please edit it outside and re-drag it.
