jinzhu/gorm: Ignore some errors like record not found

[moonsub-kim]

I wish ignore errors especially record not found that is unnecessary to classify as errors in my server.

The server queries by request from the client that can manipulate req body, then we always allow record_not_found error.
Most of record_not_found error makes me indifferent to see error rate dashboard.

To Extendability,I suggest adding an option that can ignore some type of errors like below

WithErrorFilter(func(err error) bool{
    if errors.Is(err, gorm.ErrRecordNotFound) {
        return false
    }
    return true
})

If you agree about it, I will make a PR

[knusbaum]

@moonsub-kim

This seems like an acceptable option to add. We added something similar to contrib/go-chi/chi recently (#773).
In that one, we ended up calling the option WithStatusCheck, so maybe for consistency we can call this WithErrorCheck

We also just merged contrib/gorm.io/gorm.v1 which is where the next version of gorm moved. We should add the option there too to keep parity between gorm integration versions.

[knusbaum]

Fixed in #806