Update Vendure provider to latest API changes (#352)

Relates to #349

framework/vendure/api/operations/get-customer-wishlist.ts

@@ -0,0 +1,23 @@
+import { OperationContext } from '@commerce/api/operations'
+import { Provider, VendureConfig } from '../'
+
+export default function getCustomerWishlistOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getCustomerWishlist({
+    config: cfg,
+    variables,
+    includeProducts,
+  }: {
+    url?: string
+    variables: any
+    config?: Partial<VendureConfig>
+    includeProducts?: boolean
+  }): Promise<any> {
+    // Not implemented as Vendure does not ship with wishlist functionality at present
+    const config = commerce.getConfig(cfg)
+    return { wishlist: {} }
+  }
+
+  return getCustomerWishlist
+}