User ids and gdpr support (#1920)

* Updated docs Colossusssp Adapter

* Update colossusssp.md

Add media types

* Update colossusssp.md

add usp consent support

* adding schain flag

* gdpr and user ids

* id5id support

Co-authored-by: Vladislav Isaiko <vladis@smartyads.com>
Co-authored-by: bretg <bgorsline@gmail.com>
Co-authored-by: Aiholkin <artem.iholkin@smartyads.com>

dev-docs/bidders/colossusssp.md

@@ -7,6 +7,8 @@ biddercode: colossusssp
 usp_supported: true
 schain_supported: true
 media_types: banner, video, native
+userIds: britepoolid, identityLink, unifiedId, id5Id
+gdpr: true
 ---
 
 ### Bid Params