Integrate id link system

[mamatic]

Add documentation and examples for Identity Link submodule.

[mamatic]

Hi @idettman ,
can you please review or assign someone to this PR?

Thanks in advance!

[ian-lr]

@bretg @idettman Are you able to review? Thank you!

[bretg]

Sorry - was on vacation. I tweaked the docs a bit. Please make sure you're happy with it. The tag lines on top were getting unwieldy, so evolving them towards more of a 'marketing' tagline.

And sorry again, but I don't like the name of the file created for this module in the Prebid.js repo. It's currently identityLinkSystem.js, but all others have the suffix *IdSystem.js

I'd like PR #4077 to change the filename in the Prebid.js repo to identityLinkIdSystem.js, or pubs and managed services will typo this inconsistency frequently.

[mamatic]

Hi @bretg,
the changes are ok. Thanks for that :)

[mamatic]

Hi @bretg ,
pull request on code repo is merged:
prebid/Prebid.js#4077
If everything is ok can you please merge this one?
Thanks in advance

[bretg]

went out with 2.29

[bretg]

@mamatic -

Just noticed that a couple of user ID sub-modules aren't being passed through Prebid Server calls, Identity Link being one of them. How would you like it passed through user.ext.eids? e.g.

{
                "source": "identityLink",
                "uids": [{
                    "id": "11111111"
                }]
            }

[ian-lr]

Hey @bretg, can we pass it as:

{
      "source": "liveramp.com",
      "uids": [
        {
          "id": "11111111",
          "ext": {
            "rtiPartner": "idl"
          }
        }
      ]
    }

?