Add Apache Analytics to historical docs

Some historical documentation is missing analytics. It did not have Google Analytics, which was replaced with Apache Analytics.

Locate html pages with missing analytics and bulk add it to those pages.

Examples:

https://grails.apache.org/docs/snapshot/grails-data/
https://grails.apache.org/docs/snapshot/api/
https://grails.apache.org/docs/snapshot/grails-data/api/

Apache Analytics Code:

```


var _paq = window._paq = window._paq || [];
/* tracker methods like "setCustomDimension" should be called before "trackPageView" */
_paq.push(["setDoNotTrack", true]);
_paq.push(["disableCookies"]);
_paq.push(['trackPageView']);
_paq.push(['enableLinkTracking']);
(function() {
var u="https://analytics.apache.org/";
_paq.push(['setTrackerUrl', u+'matomo.php']);
_paq.push(['setSiteId', '79']);
var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
})();


```