Sirdata RTD Module : add eids and post content support and get ready …

…for PBJS 9.0 (prebid#11524)

* Add eids and post content suport

* multi-character sanitization

 Modify regular expression to match comments containing newlines.

* recursively removing elements to avoid an HTML element injection vulnerability

* fix expression vs expected assignment

* fix return statement for loop

* run completeSanitization instead of sanitizeContent

* fix multi-character sanitization

* Update sirdataRtdProvider.js

* fix missing moduleConfig param

* Add filtering eids based on whitelist

* fixe default Eids