P2 694 create schema blocks redux store

[increddibelly]

Summary

This PR can be summarized in the following changelog entry:

• [@yoast/schema-blocks] creates a redux store for schema blocks .

Relevant technical choices:

• moved reducer, actions and selectors from free ( see https://github.com/Yoast/wordpress-seo/pull/16825 ) to the schema blocks monorepo package.
• added Typescript type hints.
• organized the module structure.

Test instructions

This PR can be tested by following these steps:

• add any yoast block; this will trigger validation, which should be stored in redux.
• use the redux DevTools to analyze the yoast/schema-blocks store, the validation results should be there.
• there should not be any console errors related to the actions e.g. cannot find property getSchemaBlocksValidationResults of undefined

Impact check

• This PR affects the following parts of the plugin, which may require extra testing: *

UI changes

• [ ] This PR changes the UI in the plugin. I have added the 'UI change' label to this PR.

Quality assurance

• [x] I have tested this code to the best of my abilities
• [ ] I have added unittests to verify the code works as intended

Fixes #

[johannadevos]

Acceptance: 🚧

• [x] I see validation results for the Job Posting block in the yoast-seo/schema-blocks store.

• [x] I see no console errors related to this PR.

• [ ] When I add other blocks, for example the Yoast Estimated Reading Time block, but also for example a Core Paragraph block, their 'validation' also appears in the store, in the BlockValidationResult type. Is this desired behavior?

  

• [ ] The Schema Blocks validations are still present in the yoast-seo/editor store. I would have not expected them to be there anymore.

  

• [ ] On this branch, but not on develop and trunk (in Free), the yoast-seo/editor and the yoast-seo-premium/editor store are loaded twice when adding the Job Posting block.