functionName, lineNum and fileName are incorrect when swiftLogger is set

[ss-abramchuk]

As I see, inside Log.verbose, Log.info, Log.warning, etc. methods swiftLogger uses default argument values. So instead of correct ones it uses functionName, lineNum and fileName that belong to the LoggerAPI. i.e. if you call Log.info("Message") somewhere in you project swiftLogger will show that it was called from Log.info