publish CardFormView

[ccen-stripe]

Summary

CFV passed implementation review, publish it in the next release

Motivation

Testing

• Added tests
• Modified tests
• Manually verified

Screenshots

Before	After
before screenshot	after screenshot

[michelleb-stripe]

LG

[michelleb-stripe]

It seems fitting to have an example in our example application, so people can test it out and have an example of integrating it in their app.

Both one where you dynamically create the view and read it from xml would be awesome.