Livewrapped support for native and video (#2323)

* Livewrapped bidder adapter

* Added analytics documentation

* Spelling

* Added support for tcf2 and schain

* video and native support

dev-docs/bidders/livewrapped.md

@@ -4,7 +4,7 @@ title: Livewrapped
 description: Prebid Livewrapped Bidder Adaptor
 biddercode: livewrapped
 pbjs: true
-media_types: banner
+media_types: banner, video, native
 gdpr_supported: true
 userIds: id5Id, pubCommonId
 tcf2_supported: true