Incorrect error messages when schema contains custom directives

[idosela]

Since GraphQL schema allows custom directives, it shouldn't display an error when a query contains a reference to a custom directive that's defined on the schema.

See:

gql2ts/packages/from-query/src/index.ts

Lines 155 to 158 in b65ff51

	if (badDirectives.length) {
	console.error('Found some unknown directives:');
	badDirectives.forEach(d => console.error(d.name.value));
	}