Abtshield id system prebid

[tzwierzchowski]

Type of change

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

Description of change

Adds the ABTShield User ID submodule for the Prebid.js User ID module.

This change:

• registers abtshieldIdSystem as a userId submodule in modules/.submodules.json:5
• adds the ABTShield ID module implementation in modules/abtshieldIdSystem.js:23
• supports fetching an ABTShield identifier from the MCR endpoint using publisher-provided
  params.sid
• decodes stored values under abtshieldId
• exposes ABTShield IDs through user.eids with source abtshield.com
• includes optional segment output in uid.ext.segments
• maps b: 1 MCR responses to the sivt segment
• adds TypeScript config/value interfaces in modules/abtshieldIdSystem.d.ts:1
• adds module documentation and User ID examples in modules/abtshieldIdSystem.md:1, modules/userId/ userId.md:23, and modules/userId/eids.md:13
• adds unit coverage for parsing, request behavior, decoding, EID output, and SIVT segment handling in
  test/spec/modules/abtshieldIdSystem_spec.js:24

Maintainer contact: support@abtshield.com

Example configuration:

pbjs.setConfig({
  userSync: {
    userIds: [{
      name: 'abtshieldId',
      params: {
        sid: 'pb.your-service-id'
      },
      storage: {
        type: 'html5',
        name: 'abtshield_id',
        expires: 1
      }
    }]
  }
});

Docs PR: prebid/prebid.github.io#6559

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[github-actions]

Whoa there partner! This project is migrating to typescript. Consider changing the new JS files to TS, with well-defined types for what interacts with the prebid public API (for example: bid params and configuration). Thanks!

• modules/abtshieldIdSystem.js