Update CHANGELOG for 0.4.2
Update CHANGELOG for 0.4.2

Dimentar/SwiftGen,stripysock/SwiftGen,plivesey/SwiftGen,plivesey/SwiftGen,AliSoftware/SwiftGen,SwiftGen/SwiftGen,Dimentar/SwiftGen,AliSoftware/SwiftGen,SwiftGen/SwiftGen,plivesey/SwiftGen,AliSoftware/SwiftGen,stripysock/SwiftGen