[NT-883] Send user attributes with Optimizely's "activate" function

[ifbarrera]

📲 What

Sends user attributes with Optimizely's activate and getVariation functions so that we can segment experiments based on user attributes.

🤔 Why

We might want to take advantage of Optimizely's experiment segmentation to bucket users into variations based on their user attributes. In order to do this, we need to send the user attributes with the activate and getVariation functions.

✅ Acceptance criteria

• whitelist your device_id into the control group - you should see the "Back this project" button as normal
• whitelist your device_id into the variation-1 group - you should see the "See the rewards" button as normal
• whitelist your device_id into the variation-2 group - you should see the "View the rewards" button as normal

[nativeksr]

	1 Warning
⚠️	Big PR

Generated by 🚫 Danger

[justinswart]

Thanks for wrapping this up 👍