WHAT:
1. payment step added to overview screen
2. pricing modal added to payment screen
3. info bar with payment info added to be shown before adding first payment method
4. message on verifying coin payment transaction screen was updated
5. coin payment transaction checkout button added to verifying screen
WHY:
better User experience
Change-Id: Ia3b12a3f7f6c874f19a9414b61afc6ba5a29970b
