core: create a renderer that works with Shadow DOM

Currently there is no way how Griffel can render styles into Shadow DOM i.e. [Shadow Root](https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot). Ideally a renderer should use [`adoptedStyleSheets`](https://developer.mozilla.org/en-US/docs/Web/API/Document/adoptedStyleSheets).

_More details TBD._