LG-16540: A/B Framework One account

[mdiarra3]

🎫 Ticket

Link to the relevant ticket:
LG-16540

🛠 Summary of changes

Adds A/B test functionality for the one verified account information

📜 Testing Plan

Provide a checklist of steps to confirm the changes.

• set eligible_one_account_providers to include the SP u will be coming form
• set one_account_user_verification_enabled_percentage to 0 for negative test and 100 for positive test
• have user with a duplicate profile on another account
• even if user has duplicate profile they move through normally when one_account_user_verification_enabled_percentage set to 0, and user is blocked when its set to 100
• test other percentages as well with different accounts
• Verify users have same experience across same device.

[jmdembe]

Test setup looks good to me

[vrajmohan]

I'm not seeing where we persist the assignment so that it is sticky.

[mdiarra3]

Discussed in another section with @vrajmohan