feat(renderer): add targetDocument option

[layershifter]

Fixes #693.

Description

This PR adds an targetDocument option to createRenderer() that allows to render styles properly to child windows: microsoft/fluent-ui-react#1178

Packages

• fela
• fela-dom

Versioning

Minor

Checklist

Quality Assurance

• The code was formatted using Prettier (yarn run format)
• The code has no linting errors (yarn run lint)
• All tests are passing (yarn run test)
• There are no flow-type errors (yarn run flow)

Changes

• Tests have been added/updated
• Documentation has been added/updated
• My changes have proper flow-types

[layershifter]

Order of params is changed because targetDocument is required

[layershifter]

This PR actually adds changes to renderer 👎

Another approach is:

• accept target prop on RendererProvider
• pass it to rehydrate() and render() as second param
• pass it to createSubscription() and getNodeCache()

But, in this case we will hit cache issues (render() and renderer.updateSubscription()), see #704. I tried it in microsoft/fluent-ui-react#1252 and works much better for us 🚀

@rofrischmann can I hear your feedback? 👂

[layershifter]

Closing in favor of #704.