Reactify field formatters

[kertal]

Summary

Currently the field formatters produce angular flavored html or plain text. This PR adds an options to format for usage in React. This removed the regression that e.g. links, images, audio formatted content was only displayed as text, and will also be used for our Data Grid implementation.

Fixes #48106

Checklist

Use strikethroughs to remove checklist items you don't feel are applicable to this PR.

• This was checked for cross-browser compatibility, including a check against IE11
  - [ ] Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
  - [ ] Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
  - [ ] This was checked for keyboard-only and screenreader accessibility

For maintainers

- [ ] This was checked for breaking API changes and was labeled appropriately

• This includes a feature addition or change that requires a release note and was labeled appropriately

[elasticmachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: 7d26fc1

[elasticmachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: 9b893b1

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[mattkime]

@kertal I'm reviewing everything with the FieldFormatter tag - whats the status of this PR?

[kertal]

@kertal this was experimental and should be closed, but of course, having reactified field formatters would be neat :)

[kertal]

Closing this because experimental