fork from: https://github.com/uber-go/zap v1.12.0
Do not set time.Now for low level logs.
8x faster than origin zap when you emit huge number of low level logs. (such as you set log level to INFO then emit DEBUG logs)
Usage: Replace "github.com/uber-go/zap" to "github.com/Laisky/zap".
New hook HooksWithFields is: func(e zapcore.Entry, fs []zapcore.Field) (err error)
Example: