Module structure refactoring

As devops I would like to have more intuitive structure of the project. It seem like everything is now added to core-modules which is not entirely correct.

The following restructuring is proposed:

1. create "payment-modules", which to include all payment related modules from "core-modules", namely

• "core-module-payment-authorizenet", renamed to "payment-module-authorizenet"
• "core-module-payment-base", renamed to "payment-module-base"
• "core-module-payment-cybersource", renamed to "payment-module-cybersource"
• "core-module-payment-liqpay", renamed to "payment-module-liqpay"
• "core-module-payment-paypal", renamed to "payment-module-paypal"
• "core-module-payment-postfinance", renamed to "payment-module-postfinance"

2. on YCE we need "enterprise-modules", which to include the following:

• "core-module-shop-enterprise", renamed to "enterprise-modules-shop-cloning"
• "core-module-performance", renamed to "enterprise-modules-performace"
• part of "core-module-job", which is to do with job schedulers named "enterprise-modules-job"

3. on YCE we need "int-modules", which to include integrations to 3rd party systems

• "core-module-pim-icecat", renamed to "int-pim-icecat"