with the given target (href) and (optional) value as well as (optional) title attribute
//
// public function createElementImage($src, [$alt_text])
// returns an ExtendedElement that is an HTML with the given src and alt attributes (set to '' by default)
//
// public function createElementForm($action, $method, $name)
// returns an ExtendedElement that is an HTML that is a child of an HTML