This change adds Compiler CLI support for any level of nesting for lazy routes. For example `{app-root}/lazy-loaded-module-1/lazy-loaded-module-2/lazy-loaded-module-3` Where `lazy-loaded-module-3` is lazy loaded from `lazy-loaded-module-2`, and `lazy-loaded-module-2` is lazy loaded from module `lazy-loaded-module-1`, and `lazy-loaded-module-1` is lazy loaded from `AppModule` Fixes angular/angular-cli#3663