feat: Debugf function for better debugging

[kamuik16]

Closes #35

[kamuik16]

Do let me know if something is not aligned with what you expected. Thanks!

[therealbytes]

This is in the right direction. Just a few issues:

1. String values should be escaped
2. Errors should be handled instead of panicking
3. Debugf should be added to the Environment interface

I think the simplest way to do 1 and 2 for now is to use a logging library for formatting instead of implementing it from scratch. e.g.,

func debugfFormat(msg string, ctx ...interface{}) string {
    var buf bytes.Buffer
    logger := log.NewLogger(log.NewTerminalHandlerWithLevel(&buf, log.LevelDebug, true))
    logger.Debug(msg, ctx...)
    return buf.String()
}

[kamuik16]

Updated the code @therealbytes ser! Let me know if I did something wrong as I am still somewhat new to Go.