Vdoai spec import js (#4943)
Vdoai spec import js (#4943)

* added support for pubcommon, digitrust, id5id

* added support for IdentityLink

* changed the source for id5

* added unit test cases

* changed source param for identityLink

* added .js to imports in vdoai spec
PWyrembak/Prebid.js,PubWise/Prebid.js,prebid/Prebid.js,passit/Prebid.js,ImproveDigital/Prebid.js,HuddledMasses/Prebid.js,tchibirev/Prebid.js,prebid/Prebid.js,ImproveDigital/Prebid.js,prebid/Prebid.js,gumgum/Prebid.js,mcallari/Prebid.js,tchibirev/Prebid.js,passit/Prebid.js,mcallari/Prebid.js,varashellov/Prebid.js,gumgum/Prebid.js,Niksok/Prebid.js,Niksok/Prebid.js,gumgum/Prebid.js,PubWise/Prebid.js,Niksok/Prebid.js,ImproveDigital/Prebid.js,PWyrembak/Prebid.js,PubWise/Prebid.js,PWyrembak/Prebid.js,HuddledMasses/Prebid.js,HuddledMasses/Prebid.js,varashellov/Prebid.js