Avoid unnecessary lambda calculations when logging is disabled

[neikist]

If we even have all log levels disabled, the lambda for the message is still calculated. This affects performance and memory consumption. We can add a second log method with a lambda argument instead of a string message and evaluate this lambda only if necessary.

[matbadev]

This would be fixed with #114 but that PR is already open for more than one year 🤔

[kasem-sm]

Any updates on this?