Custom configs are not supported

[wasd171]

Hi,

I have the following apollo.config.app.js:

module.exports = {
	client: {
		service: {
			name: 'service-app',
			localSchemaFile: './src/schema.graphql'
		},
		includes: ['./src/fragments/app/*.ts']
	}
}

When named apollo.config.js it works, but using

apollo client:codegen src/generated/types/app --target=typescript --outputFlat --config=apollo.config.app.js

fails with

Error: No provider was created for config

[Xample]

Perhaps related to the fact --outputFlat requires a path
--outputFlat=some/path/queries.ts