Use the options pattern

[MetalBlueberry]

Using the options pattern makes a clean interface for the package that will be easier to maintain in the long run.

[alejandrodnm]

Shouldn't this be:

Suggested change

	if headerLinesCnt > 1 {
	if headerLinesCnt > 0 {

Otherwise you'll enter the fail branch of WithSkipHeaderCount:

if headerLineCount == 0 {
			return errors.New("header line count must be greater than zero")
}

Another thing, this changes the current behavior. I'm not saying the pass behavior is the best either. The old behavior is, if skip == false then it doesn't matter the value of headerLinesCnt, nothing is going to be skipped. By default headers are not skipped.

With you changes, since headerLinesCnt defaults to 1, and you are not requiring skip == true to set the value for skip, then we are defaulting to always skip the first line.

I'd rather not change the old behavior, and if we do it, let's document it.

[MetalBlueberry]

You have a point, I was excited about the change and decided that this behavior was a bit better. But there is no real reason to change it. So I'm going to leave it as it was.

I'm going to leave the option to just set skip header, as that is the most common configuration and the one we will be using on our system.