dillon1000/react

[Fizz/Float] Float for stylesheet resources (#25243)

* [Fizz/Float] Float for stylesheet resources

This commit implements Float in Fizz and on the Client. The initial set of supported APIs is roughly

1. Convert certain stylesheets into style Resources when opting in with precedence prop
2. Emit preloads for stylesheets and explicit preload tags
3. Dedupe all Resources by href
4. Implement ReactDOM.preload() to allow for imperative preloading
5. Implement ReactDOM.preinit() to allow for imperative preinitialization

Currently supports
1. style Resources (link rel "stylesheet")
2. font Resources (preload as "font")

later updates will include support for scripts and modules