Moves playgrounds from workspace to project. ReactiveX#806

Author: kzaher

Rx.xcodeproj/project.pbxproj

@@ -1715,6 +1715,7 @@
 		C8C4B4C01C17727000828BD5 /* MessageSentObserver.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MessageSentObserver.swift; sourceTree = "<group>"; };
 		C8D132431C42D15E00B59FFF /* SectionedViewDataSourceType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SectionedViewDataSourceType.swift; sourceTree = "<group>"; };
 		C8D132521C42DA7F00B59FFF /* SectionedViewDataSourceMock.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SectionedViewDataSourceMock.swift; sourceTree = "<group>"; };
+		C8D2C1501D4F3CD6006E2431 /* Rx.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = Rx.playground; sourceTree = "<group>"; };
 		C8DB967D1BF7496C0084BD53 /* KVORepresentable.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = KVORepresentable.swift; sourceTree = "<group>"; };
 		C8DB96821BF754C80084BD53 /* NSObject+Rx+KVORepresentable.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSObject+Rx+KVORepresentable.swift"; sourceTree = "<group>"; };
 		C8DB96871BF756F40084BD53 /* KVORepresentable+CoreGraphics.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "KVORepresentable+CoreGraphics.swift"; sourceTree = "<group>"; };
@@ -2513,6 +2514,7 @@
 		C8A56ACD1AD7424700B4673B = {
 			isa = PBXGroup;
 			children = (
+				C8D2C1501D4F3CD6006E2431 /* Rx.playground */,
 				C8093C471B8A72BE0088E94D /* RxSwift */,
 				C8093F571B8A73A20088E94D /* RxBlocking */,
 				C8093E801B8A732E0088E94D /* RxCocoa */,