[FEATURE] Add new column in PaymentAttempt for storing mandate_data

[Aprabhat19]

Feature Description

Add new column in PaymentAttempt for storing mandate_data to be future compatible

Possible Implementation

Add a column mandate_data which would be a struct , in order to store the mandate details for a mandate in Payment Attempt table

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!