Merge pull request #1819 from adrfer/master

Ignore playground files

Swift.gitignore

@@ -27,6 +27,10 @@ xcuserdata
 *.hmap
 *.ipa
 
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
 # Swift Package Manager
 #
 # Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.