update to php 8.0

Merge pull request #31 from b1rdex/php8-compat

Php 8 compatibility

refactoring

refactoring

add functionnality

add functionnality streaming

refactoring

big refactoring of all library.

refactoring

refactoring

add more tests

add more tests

add test

add test

fix bugs

added a parameter in

  private function setDomainResults($users, Domain $domain, $val, $info='')

it should contain some information , why the validation didnt succeeded.
Also added some descriptions .
Usage:

if ($isCatchallDomain) {
    if (!$options['catchAllIsValid']) {
         $this->setDomainResults($users, $dom, $options['catchAllIsValid'],'catch all detected');
         continue;
    }
}

fix a condition - catch all

fix a condition - catch all

fix bug array merge.

fix bug array merge.