Project create improvements

- Programmatically set Consent (Branding page) saving a user step
- record created_by in client_secrets.json for easier backtracking
- use local project-apis.txt if it exists

src/project-apis.txt

@@ -2,9 +2,11 @@ admin.googleapis.com
 alertcenter.googleapis.com
 appsactivity.googleapis.com
 calendar-json.googleapis.com
+chat.googleapis.com
 classroom.googleapis.com
 contacts.googleapis.com
 drive.googleapis.com
+iap.googleapis.com
 gmail.googleapis.com
 groupssettings.googleapis.com
 iam.googleapis.com