Add Storage Configuration

[chenyulun]

Can you realize that the current log is written to a file without a date, and the next day the file is dumped to a file with a date for backup, which is not the same as creating createSymlink?

Because our file-listening service (the log-collecting service) doesn't support createSymlink and can only listen to a single file

[chenyulun]

winstonjs/winston-daily-rotate-file#392