Add ordercloud provider (#500)

* Add ordercloud provider

* Fix provider errors

* Make submit checkout optional

* Make submit checkout optional

* Remove nullables when creating endpoint type

* Update readme

* Log checkout error

* Log error

* Save token to cookie

* Update fetch rest

* Use token at checkout

Co-authored-by: Luis Alvarez <luis@vercel.com>

framework/ordercloud/api/operations/get-page.ts

@@ -0,0 +1,15 @@
+import { GetPageOperation } from "@commerce/types/page"
+
+export type Page = any
+export type GetPageResult = { page?: Page }
+
+export type PageVariables = {
+  id: number
+}
+
+export default function getPageOperation() {
+  async function getPage<T extends GetPageOperation>(): Promise<T['data']> {
+    return Promise.resolve({})
+  }
+  return getPage
+}