render SWFOBJECT: make it posible to change path of swfobject.js

[georgringer]

In line 2861 of file class.tslib_content.php the swfobject.js (contrib folder) is added to page-setup.

It would be nice to be able to change the location of swfobject.js.

In some installations the /typo3-file is additionaly protected with http-auth. in this case the browser will show an auth-dialog on frontend. For Example the Flash-Video-Player.

i think thiis could be done through setup.

something like this:

tt_content.swfobject {
20 = SWFOBJECT
20 {
swfObjectUrl = fileadmin/contrib/flashmedia/swfobject/swfobject.js
installUrl = fileadmin/contrib/flashmedia/swfobject/expressInstall.swf
}
}

The installUrl paramter already exists in the php file but only works if it Is hardcoded into setup.txt (from css_styled_content).
(issue imported from #M15312)

https://forge.typo3.org/issues/23322