Bugfix - ECDEV-1379 - Profile Card requests (Add & Update)

[tszulc]

What's this PR do?

• nested the CreditCard data under the card key
• moved validation of credit card only if there's card data set
• added token key with value, if there's token data set
• added comment key with value
• updates the Create and Update PaymentProfileCardRequest tests

Should follow Bambora V1.0.5

ECDEV-1379

How should this be manually tested?

1. On roomroster.v2 replace lemonstand/omnipay-beanstream with roomroster/omnipay-beanstream
2. Test that all Payment Profile and Payment Profile Card requests still work
3. Run ./vendor/bin/phpunit (add --verbose if you want more details)

Checklist

• All breaking changes have been tested across mobile and web projects. Ex: schema changes
• Has been stress tested. Ex: CSV upload can handle 5 rows or 500
• Any commands that change schema / data will be ran on every server (Production, staging, sales) at the same time.

[tinavandervecht]

you frickin did it

[tszulc]

as per my discussion with @tinavandervecht:
We are keeping this PR open even though it's been approved so that the branch is not accidentally deleted, and so that once lemonstand#12 goes in we can switch lemonstand/omnipay-beanstream to point back to dev-master (from dev-bugfix-profile-card-requests) in our repo

[tszulc]

I've made the executive decision, that I'll just close this PR instead of keeping it open even after it's been approved