Refactor the complete oneclick process as it was not correctly send to checkout api. Build a converter to convert oneclick,recurring to enableOneclick and enableRecurring to make it easier for the merchants to configure. Update version so upgrade script will be executed. Added converter back to oneclick,recurring to be backwards compatible with current billing agreements. Made fixes for oneclick and bcmc. added styles for cards component and oneclick component.

Added createAdyenBillingAgreement function in helper, calls setCcBillingAgreement in billing agreement model

 - remove generation time
 - add checkout sdk live and test version
 - cvc is not required (e.g. at recurring)

- request builders mod to the checkout structure

- Remove CSE library at One click
- Add Card components (CVC) instead of CSE
- Move to new beta card components
- Remove expiry date update from the template and the js

Add Checkout utility factory into Helper\Data

Add live endpoint prefix to initialize client

- Card components instead of CSE
- 3D secure adjusted
- Installments adjusted

- Dependent php-api-library change (on the branch PW-306)

password
- Remove username, password (test, live) from admin/store configuration/
required settings. Add API Key instead
- Get secure fields SDK based on isDemo
- Include checkout js components
- Remove CSE library and tokens

Added createAdyenBillingAgreement function in helper, calls setCcBillingAgreement in billing agreement model

PW-882: Fix 3dsecure for M2.3, fix captureonshipment

Set isajax to true in Validate3d controller to prevent Invalid form key error(magento 2.3), fix for capture on shipment method

autofix code style + two fixed errors setting the right exception cla…

* PW-818: Fix for Magento 2.3 compatibility

* Set only the isAjax param instead of setting everything again

FIX enable advanced cc for store level
PW-858

PW-835 Move from details.shtml to skipDetails.shtml