Standardize Logging

[sa7mon]

Mainly in main.go but also add debug logging to the different modules

• log.Println
• fmt.Println
• failOnError
• logrus

Test with -debug flag

[sa7mon]

In main.go change printResult to take errors too instead of

if existsErr != nil {
   log.Errorf("error     | %s | %s", bucket.Name, existsErr.Error())
   continue
}