FTRACK USER ID MODULE: making the IDS selected via the config

[ftxmoJason]

Type of change

• Does this change affect user-facing APIs or examples documented on http://prebid.org?
• Other

Description of change

FTRACK has three IDs to chose from, we are removing two of them from being static in the javascript and instead using the config to allow publishers to chose which of the three IDs they want or allowing the default to be just two of them.

Be sure to test the integration with your adserver using the Hello World sample page.

For any changes that affect user-facing APIs or example code documented on http://prebid.org, please provide:

• FTrack User Id submodule: making the IDs dynamic prebid.github.io#3690

Other information

N/A

[ftxmoJason]

ci/circleci failed on someone else's test

[ftxmoJason]

Just wanted to call out that the circleci build step failed due to someone else's test...

finteza analytics adapter track bid request

[ftxmoJason]

@jlukas79 Does this PR require any action from me to move forward? Thanks