290 - Mark interfaces as api, refactoring interfaces

[AndreyChorniy]

Description (*)

This PR created to mark interfaces as api, also added small code refactoring changes

Fixed Issues (if relevant)

1. magento/security-package#290 Mark interfaces and blocks as API

Manual testing scenarios (*)

1. ...
2. ...

Questions or comments

Contribution checklist (*)

• [ ] Author has signed the Adobe CLA
• [ ] Pull request has a meaningful description of its purpose
• [ ] All commits are accompanied by meaningful commit messages
• [ ] All new or changed code is covered with unit/integration tests (if applicable)
• [ ] All automated tests passed successfully (all builds are green)

[AndreyChorniy]

@magento run all tests

[nathanjosiah]

@magento run all tests against 2.4.3-develop

[magento-automated-testing[bot]]

The requested builds are added to the queue. You should be able to see them here within a few minutes. Please re-request them if they don't show in a reasonable amount of time.

[nathanjosiah]

@AndreyChorniy Can you pull the latest code into your branch. I think that's the bulk of the failures in the builds.

[nathanjosiah]

@magento import code to https://github.com/magento-cia/security-package

[nathanjosiah]

@magento import code to https://github.com/magento-commerce/security-package

[nathanjosiah]

@magento import code to https://github.com/magento-commerce/security-package

[magento-engcom-team]

@nathanjosiah the branch with code successfully imported intomagento-commerce/security-package repository. Branch name: imported-magento-security-package-294.

[fredden]

https://github.com/magento/security-package/commit/8d5c176194b535f379d985d130d6999edb08e00d