feat(medusa): Implement premises of order edit retrieval (#2183)

**What**
- Implements the admin/store retrieval end point 
- Service implementation of the retrieve method
- Service implementation of the computeLineItems method which aggregates the right line item based on the changes that are made
- client
  - medusa-js api
  - medusa-react queries hooks

**Tests**
- Unit tests of the retrieval end points
- Unit tests of the service retrieve method and computeLineItems
- Integration tests for admin/store
- client
  - medusa-js tests
  - medusa-react hooks tests

FIXES CORE-492

integration-tests/api/factories/simple-order-edit-factory.ts

@@ -0,0 +1,52 @@
+import { Connection } from "typeorm"
+import { OrderFactoryData, simpleOrderFactory } from "./simple-order-factory"
+import { OrderEdit } from "@medusajs/medusa"
+
+export type OrderEditFactoryData = {
+  id?: string
+  order?: OrderFactoryData
+  order_id?: string
+  internal_note?: string
+  declined_reason?: string
+  confirmed_at?: Date | string
+  confirmed_by?: string
+  created_at?: Date | string
+  created_by?: string
+  requested_at?: Date | string
+  requested_by?: string
+  canceled_at?: Date | string
+  canceled_by?: string
+  declined_at?: Date | string
+  declined_by?: string
+}
+
+export const simpleOrderEditFactory = async (
+  connection: Connection,
+  data: OrderEditFactoryData = {}
+): Promise<OrderEdit> => {
+  const manager = connection.manager
+
+  if (!data.order_id) {
+    const order = await simpleOrderFactory(connection, data.order)
+    data.order_id = order.id
+  }
+
+  const orderEdit = manager.create<OrderEdit>(OrderEdit, {
+    id: data.id,
+    order_id: data.order_id,
+    internal_note: data.internal_note,
+    declined_reason: data.declined_reason,
+    declined_at: data.declined_at,
+    declined_by: data.declined_by,
+    canceled_at: data.canceled_at,
+    canceled_by: data.canceled_by,
+    requested_at: data.requested_at,
+    requested_by: data.requested_by,
+    created_at: data.created_at,
+    created_by: data.created_by,
+    confirmed_at: data.confirmed_at,
+    confirmed_by: data.confirmed_by,
+  })
+
+  return await manager.save<OrderEdit>(orderEdit)
+}

integration-tests/api/factories/simple-order-item-change-factory.ts

@@ -0,0 +1,30 @@
+import {
+  OrderEdit,
+  OrderEditItemChangeType,
+  OrderItemChange,
+} from "@medusajs/medusa"
+import { Connection } from "typeorm"
+
+type OrderItemChangeData = {
+  id: string
+  type: OrderEditItemChangeType
+  order_edit_id: string
+  original_line_item_id?: string
+  line_item_id?: string
+}
+
+export const simpleOrderItemChangeFactory = async (
+  connection: Connection,
+  data: OrderItemChangeData
+) => {
+  const manager = connection.manager
+  const change = manager.create<OrderItemChange>(OrderItemChange, {
+    id: data.id,
+    type: data.type,
+    order_edit_id: data.order_edit_id,
+    line_item_id: data.line_item_id,
+    original_line_item_id: data.original_line_item_id,
+  })
+
+  return await manager.save<OrderItemChange>(change)
+}