Fix bidder docs support for userid module

[smenzer]

Many of the bid adapters' documentation did not properly list the userId submodules that they listen to in their adapter code.

This PR is to update each adapter's docs that are clearly listening to one or more userId submodules in their adapter code. Bid adapters can listen to providers via a whitelist of ID providers that are clearly called out in the code, or by grabbing the entire userIds or userIdAsEids array and adding them to their ad request payload.

ID providers are listen in alphabetical order, just like in the userId documentation.

[smenzer]

looks like OpenX put in a PR to add their updated user ID modules here #1875. Mine is a duplicate of theirs, technically, but keeps the ordering and naming consistent with everyone else, so I'd suggest we keep mine (if merged) and drop their PR.