WHAT:
modal with saving API key confirmation implemented for onboarding tour
WHY:
ensure user saved API key
Change-Id: I9bc000cf5a19a9d6fc9eb3a4bfb9156d6b4bc78f
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
