Prebid 4.0 updates (prebid#5534)

* remove these adapters from 4.0 (prebid#5369)

Co-authored-by: sumit sharma <sumit.sharma1@SYNPUNLT9114TFL.SYNAPPNXS.local>

* add meta key to interpreted bid response (prebid#5358)

* add meta key to interpreted bid response

* add more unit tests

Co-authored-by: sumit sharma <sumit.sharma1@SYNPUNLT9114TFL.appnexus.com>
Co-authored-by: sumit sharma <sumit.sharma1@SYNPUNLT9114TFL.SYNAPPNXS.local>

* add adomain to bid.meta in spotx adapter (prebid#5401)

* add adomain to bid.meta in spotx adapter


this puts the adomain key in the right spot, related to prebid#5358 and partially solves prebid#3115 for SpotX

* Update spotxBidAdapter.js

* Update spotxBidAdapter.js

* unit test for adomain on spotx adapter

* Update spotxBidAdapter_spec.js

* Update spotxBidAdapter_spec.js

* adds advertiserDomains meta to the pubmatic adapter (prebid#5402)

* adds advertiserDomains meta

* Update pubmaticBidAdapter.js

* unit test for meta.advertiserDomains to pubmatic

* Update pubmaticBidAdapter_spec.js

* TCF Purpose 1 and Purpose 2 enforcement for Prebid v4.0 (prebid#5336)

* TCF v2.0 enforcement

* test/spec/modules/gdprEnforcement_spec.js

* add check for gdpr version

* add logInfo message

* remove comment and store value of PURPOSES in an object

* add gvlid check

* add unit tests for validateRules function

* remove purposeId parameter from validateRules function

* add extra tests

* make failing unit test case pass

* deprecate allowAuctionWithouConsent with tcf 2 workflow

* add extra checks for defaults

* remove tcf 2 test page

* add strict gvlid check

* add comments and shorten log messages

* shorted log messages

* add unit tests for setEnforcementConfig

* add gvlid for alias and gvlMapping support

* remove gvlid check

* add support to add gvlid for aliases

Co-authored-by: Jaimin Panchal <email@example.com>

* add advertiserDomains meta field to ix adapter (prebid#5404)

* add advertiserDomains meta field to ix adapter

* Update ixBidAdapter.js

* Update ixBidAdapter_spec.js

* Update ixBidAdapter_spec.js

* add adomain to bid.meta in telaria adapter (prebid#5400)

* add adomain to bid.meta in telaria adapter

this puts the adomain key in the right spot, related to prebid#5358 and partially solves prebid#3115 for Telaria

* Remove digitrust from prebid server js adapter (prebid#5438)

* Update prebidServerBidAdapter_spec.js

* Update index.js

* Interactive advertising bureau digitrust exit (prebid#5429)

* Removing DigiTrust ID system core.

* Removing test spec for digitrust id.

* Removing DigiTrust references from eids test spec.

Co-authored-by: Chris Cole <goosemanjack@gmail.com>

* Delete serverbidBidAdapter.md (prebid#5477)

deprecated in favor of consumable adapter

* Set cookie domain in pubcid / userid on main domain, not subdomain (prebid#5500)

* update formatting

* update formatting

* requested changes implemented

* add unit test

* add test case for missing adomain in ix adapter (prebid#5422)

* add test case for missing adomain in ix adapter

at request of @ix-prebid-support on prebid#5404

* Update ixBidAdapter_spec.js

* Update ixBidAdapter_spec.js

* Update ixBidAdapter_spec.js

* drop support for userId configs with the `usersync` config object (prebid#5427)

* drop support for userId configs with the `usersync` config object, per deprecation notice

* changes on drop support (#1)

* Update userIdTargeting.md

* Update userId.md

* Update userId_spec.js

* Update britepoolIdSystem.md

* Update sharedIdSystem.md

Co-authored-by: Patrick McCann <patmmccann@gmail.com>

Co-authored-by: sumit sharma <sharmasumit116@gmail.com>
Co-authored-by: sumit sharma <sumit.sharma1@SYNPUNLT9114TFL.SYNAPPNXS.local>
Co-authored-by: sumit sharma <sumit.sharma1@SYNPUNLT9114TFL.appnexus.com>
Co-authored-by: Patrick McCann <patmmccann@gmail.com>
Co-authored-by: Neelanjan Sen <14229985+Fawke@users.noreply.github.com>
Co-authored-by: Jaimin Panchal <email@example.com>
Co-authored-by: Neelanjan Sen <neelanjan.sen@gmail.com>
Co-authored-by: Chris Cole <goosemanjack@gmail.com>
Co-authored-by: Isaac A. Dettman <idettman@rubiconproject.com>
Co-authored-by: Scott <smenzer@gmail.com>