…uctive hydration

This commit adds the `provideClientHydration` function to the public API. This function can be used to enable the non-destructive Angular hydration.

Important note: the non-destructive hydration feature is in Developer Preview mode, learn more about it at https://angular.io/guide/releases#developer-preview.

Before you can get started with hydration, you must have a server side rendered (SSR) application. Follow the [Angular Universal Guide](https://angular.io/guide/universal) to enable server side rendering first. Once you have SSR working with your application, you can enable hydration by visiting your main app component or module and importing `provideClientHydration` from `@angular/platform-browser`. You'll then add that provider to your app's bootstrapping providers list.

```typescript
import {
  bootstrapApplication,
  provideClientHydration,
} from '@angular/platform-browser';
// ...
bootstrapApplication(RootCmp, {
  providers: [provideClientHydration()]
});
```

Alternatively if you are using NgModules, you would add `provideClientHydration` to your root app module's provider list.

```typescript
import {provideClientHydration} from '@angular/platform-browser';
import {NgModule} from '@angular/core';

@NgModule({
  declarations: [RootCmp],
  exports: [RootCmp],
  bootstrap: [RootCmp],
  providers: [provideClientHydration()],
})
export class AppModule {}
```

You can confirm hydration is enabled by opening Developer Tools in your browser and viewing the console. You should see a message that includes hydration-related stats, such as the number of components and nodes hydrated.

Co-authored-by: jessicajaniuk <[email protected]>
Co-authored-by: alan-agius4 <[email protected]>