feat(@ngtools/webpack): deprecate `discoverLazyRoutes`, `additionalLazyModules` and `additionalLazyModuleResources` options
feat(@ngtools/webpack): deprecate `discoverLazyRoutes`, `additionalLazyModules` and `additionalLazyModuleResources` options

String form of lazy loading and SystemJsNgModuleLoader are deprecated, and this is part of its usage.

See: https://angular.io/api/core/SystemJsNgModuleLoader#systemjsngmoduleloader

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