os Changes for Swift
os
Removed OS_OBJECT_HAVE_OBJC_SUPPORT
Removed OS_OBJECT_USE_OBJC
Removed OS_OBJECT_USE_OBJC_RETAIN_RELEASE
Added OSLog
Added OSLog.default
Added OSLogType [struct]
Added OSLogType.debug
Added OSLogType.default
Added OSLogType.error
Added OSLogType.fault
Added OSLogType.info
Added OSLogType.init(_: UInt8)
Added OSLogType.rawValue
Added OS_TRACE_TYPE_DEBUG
Added OS_TRACE_TYPE_INFO
Added OS_TRACE_TYPE_RELEASE