feat(order): module foundation (#6399)

What:
Initial Order module foundation.
Basic models and methods to manage entites like in Cart Module

packages/utils/src/index.ts

@@ -10,6 +10,7 @@ export * from "./feature-flags"
 export * from "./fulfillment"
 export * from "./modules-sdk"
 export * from "./orchestration"
+export * from "./order"
 export * from "./payment"
 export * from "./pricing"
 export * from "./product"