unused hook ParserClearState, it was wrong. Update LimitReport (v 3.2.0)

* add $wgPhpTagsCounter instead of $wgPhpTagsTime
* add function \PhpTags::onOutputPageParserOutput();
* rename function \PhpTags::onParserClearState() to \PhpTags::reset()

Change-Id: If27134b12c473da72742be4bcc9daea984951ccd