PBjs Core - Adloader : add brandmetrics module to approved external js- loaders (#7949)
PBjs Core - Adloader : add brandmetrics module to approved external js- 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
HuddledMasses/Prebid.js,Niksok/Prebid.js,HuddledMasses/Prebid.js,PubWise/Prebid.js,PWyrembak/Prebid.js,PWyrembak/Prebid.js,prebid/Prebid.js,PubWise/Prebid.js,PubWise/Prebid.js,HuddledMasses/Prebid.js,ImproveDigital/Prebid.js,ImproveDigital/Prebid.js,gumgum/Prebid.js,prebid/Prebid.js,prebid/Prebid.js,gumgum/Prebid.js,ImproveDigital/Prebid.js,Niksok/Prebid.js,Niksok/Prebid.js,gumgum/Prebid.js,PWyrembak/Prebid.js