Vdoai spec import js (prebid#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

test/spec/modules/vdoaiBidAdapter_spec.js

@@ -1,6 +1,6 @@
 import {assert, expect} from 'chai';
-import {spec} from 'modules/vdoaiBidAdapter';
-import {newBidder} from 'src/adapters/bidderFactory';
+import {spec} from 'modules/vdoaiBidAdapter.js';
+import {newBidder} from 'src/adapters/bidderFactory.js';
 
 const ENDPOINT_URL = 'https://prebid.vdo.ai/auction';