New Analytics Adapter: PubxAi

[tej656]

No description provided.

[bsardo]

Hi @tej656, when you have time, please merge with master and resolve conflicts.

Also, we recently released PBS 3.0, more specifically v3.1.0, which updates Prebid Server package import references throughout the project from v2 to v3.
For example:

import (
    "github.com/prebid/prebid-server/v3/adapters"
)

As a result, after merging with master, please ensure all Prebid Server package import references in the files you’ve changed are v3 such that the test suite passes so we can resume reviewing. Thanks!

[tej656]

@bsardo i have updated the merge conflicts.