PBjs Core - Adloader : add brandmetrics module to approved external j…

…s- loaders (#7949)

* First version of brandmetrics RTD- module

* Implement brandmetricsRtdProvider

* Add gdpr and usp consent- checks

* Add user- consent related tests

* Set targeting keys in a more generic way

* Test- logic updates

* Add brandmetrics to approved external js- loaders

src/adloader.js

@@ -8,7 +8,8 @@ const _approvedLoadExternalJSList = [
   'criteo',
   'outstream',
   'adagio',
-  'browsi'
+  'browsi',
+  'brandmetrics'
 ]
 
 /**