Add 'compat' API to wrap RN elements

[necolas]

Although it's not recommended, we have internal component forks that need to delegate to RN elements within RSD trees. This API makes that possible, while preserving the props conversion and rendering the necessary contexts to allow switching back to RSD elements within the subtree.

As implemented, it currently requires a type annotation to be used on the nativeProps arg.

// Foo.native.js
import { compat } from 'react-strict-dom'
import { View } from 'react-native'

function Foo(props) {
  return (
    <compat.native aria-label={props.label} style={styles.foo}>
      {(nativeProps: React.PropsOf<View>) => <View {...nativeProps}>{/**/}</View>}
    </compat.native>
  )
}

[github-actions[bot]]

workflow: benchmarks/size

Comparison of minified (terser) and compressed (brotli) size results, measured in bytes. Smaller is better.	Results	Base	Patch	Ratio
react-strict-dom/dist/dom/index.js
· compressed	2,488	2,488	1.00
· minified	8,586	8,586	1.00
react-strict-dom/dist/dom/runtime.js
· compressed	850	850	1.00
· minified	2,404	2,404	1.00
react-strict-dom/dist/native/index.js
· compressed	15,651	15,860	1.01	+
· minified	58,387	59,389	1.02	+

[github-actions[bot]]

workflow: benchmarks/perf (native)

Comparison of performance test results, measured in operations per second. Larger is better.	Results	Base	Patch	Ratio
css.create
· small	1,134,413	1,155,683	1.02	+
· small with units	447,480	447,384	1.00	-
· small with variables	699,163	684,026	0.98	-
· several small	327,514	326,598	1.00	-
· large	215,292	215,975	1.00	+
· large with polyfills	151,016	149,260	0.99	-
· complex	103,077	102,149	0.99	-
· unsupported	224,628	224,540	1.00	-
css.createTheme
· simple theme	225,409	225,645	1.00	+
· polyfill theme	212,319	211,401	1.00	-
css.props
· small	247,021	247,026	1.00	+
· small with units	192,930	192,814	1.00	-
· small with variables	106,285	107,130	1.01	+
· small with variables of units	75,580	75,434	1.00	-
· large	105,167	105,189	1.00	+
· large with polyfills	37,432	37,181	0.99	-
· complex	24,095	23,869	0.99	-
· unsupported	154,859	154,862	1.00	+
· simple merge	165,225	164,754	1.00	-
· wide merge	18,223	18,116	0.99	-
· deep merge	17,922	17,878	1.00	-
· themed merge	32,368	32,546	1.01	+