Differential Revision: D80169516

…nent (facebook#53248)

Summary:
Pull Request resolved: facebook#53248

Changelog: [internal]

This adds a new benchmark that compares the rendering time (only rendering, not committing, mounting, effects, etc.) of `<View>` and `<ViewNativeComponent>`.

Baseline:

| (index) | Task name                                | Latency avg (ns)  | Latency med (ns)   | Throughput avg (ops/s) | Throughput med (ops/s) | Samples |
| ------- | ---------------------------------------- | ----------------- | ------------------ | ---------------------- | ---------------------- | ------- |
| 0       | 'render 100 views (Noop)'                | '333036 ± 0.39%'  | '328452 ± 2393.0'  | '3019 ± 0.18%'         | '3045 ± 22'            | 3003    |
| 1       | 'render 100 views (ViewNativeComponent)' | '1335974 ± 3.45%' | '1228468 ± 7541.5' | '797 ± 0.71%'          | '814 ± 5'              | 1000    |
| 2       | 'render 100 views (View)'                | '2296988 ± 1.60%' | '2170821 ± 12374'  | '449 ± 0.74%'          | '461 ± 3'              | 1000    |

This shows that **`<View>` currently has an overhead of 75% in rendering time**.

I've also tested a modification of `View` such as:

```
component View(...props: ViewProps) {
  return {
    // This tag allows us to uniquely identify this as a React Element
    $$typeof: REACT_ELEMENT_TYPE,
    // Built-in properties that belong on the element
    type: ViewNativeComponent,
    key: undefined,
    // $FlowExpectedError[prop-missing]
    ref: props.ref,
    props,
  };
}
```

This makes `View` basically a no-op component, and the benchmark after this looks like:

| (index) | Task name                                | Latency avg (ns)  | Latency med (ns)  | Throughput avg (ops/s) | Throughput med (ops/s) | Samples |
| ------- | ---------------------------------------- | ----------------- | ----------------- | ---------------------- | ---------------------- | ------- |
| 0       | 'render 100 views (View)'                | '1743010 ± 2.25%' | '1630816 ± 10616' | '600 ± 0.74%'          | '613 ± 4'              | 1000    |
| 1       | 'render 100 views (ViewNativeComponent)' | '1370699 ± 4.04%' | '1242284 ± 14172' | '789 ± 0.74%'          | '805 ± 9'              | 1000    |

This shows that `View`, just for existing as a wrapper component, has an overhead of 31% in rendering time, which means that **the opportunities to reduce the overhead beyond what we already did are limited**.

Reviewed By: rshest

Differential Revision: D80169514