Support xcode 9 new build system
Support xcode 9 new build system

Xcode 9 new build system: https://medium.com/@incubation.ff/our-favourite-features-of-xcode-9-fb0ca72679d0

Problem when building with new build system: duplicate Info.plist file
Error log: 
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:-1: unable to build node: '/Build/Products/Debug-iphonesimulator/RNLoadingButton-Swift/RNLoadingButton_Swift.framework/Info.plist' (node is produced by multiple commands; e.g., '7ec139cde73c7845604110dd28bd8ec03f62ababc8e8a94212f57197be1a29f1:CopyPlistFile /Build/Products/Debug-iphonesimulator/RNLoadingButton-Swift/RNLoadingButton_Swift.framework/Info.plist /Pods/RNLoadingButton-Swift/RNLoadingButton/Info.plist' and '7ec139cde73c7845604110dd28bd8ec03f62ababc8e8a94212f57197be1a29f1:ProcessInfoPlistFile /Build/Products/Debug-iphonesimulator/RNLoadingButton-Swift/RNLoadingButton_Swift.framework/Info.plist /Pods/Target Support Files/RNLoadingButton-Swift/Info.plist')
souzainf3/RNLoadingButton-Swift,souzainf3/RNLoadingButton-Swift