Add new package @wordpress/lazy-import for lazily installed packages (

#22684)

* Packages: Add package "lazy-import"

* isShallowEqual: Lazily install dependencies for benchmark

* Lazy Import: Avoid abbreviated package variable

* Lazy Import: Add requirement for NPM 6.9.0+

* Lazy Import: Throw error specific for disconnected

* Lazy Import: Delete cache on second require attempt

* Bump execa and semver to consistent latest version

* Create Block: Bump execa dependency

* Update package-lock.json file

* Fix npm-package-arg dependency

* Lazy Import: Avoid mutating require cache for final import

* Update package-lock.json

Co-authored-by: Grzegorz Ziolkowski <grzegorz@gziolo.pl>

docs/manifest.json

@@ -1487,6 +1487,12 @@
 		"markdown_source": "../packages/keycodes/README.md",
 		"parent": "packages"
 	},
+	{
+		"title": "@wordpress/lazy-import",
+		"slug": "packages-lazy-import",
+		"markdown_source": "../packages/lazy-import/README.md",
+		"parent": "packages"
+	},
 	{
 		"title": "@wordpress/library-export-default-webpack-plugin",
 		"slug": "packages-library-export-default-webpack-plugin",