[FEATURE] [BRAINTREE] Pass email in payment requests

[deepanshu-iiitu]

Feature Description

Pass email in payment request body of Braintree.

Possible Implementation

Pass email in payment request body of Braintree.

Have you spent some time checking if this feature request has been raised before?

• I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

Yes, I am willing to submit a PR!