feat: order show endpoint

Author: ahinkle

src/Api/Orders.php

@@ -20,4 +20,16 @@ public function all($pageSize = 50, $currentPage = 1, $filters = [])
             'searchCriteria[currentPage]' => $currentPage,
         ]));
     }
+
+    /**
+     * Loads a specified order.
+     *
+     * @param  int  $orderId
+     *
+     * @return  array
+     */
+    public function show($orderId)
+    {
+        return $this->get('/orders/'.$orderId);
+    }
 }

tests/Api/OrdersTest.php

@@ -37,4 +37,16 @@ public function test_can_call_magento_api_orders_all_with_filter()
 
         $this->assertTrue($api->ok());
     }
+
+
+    public function test_can_call_magento_show()
+    {
+        Http::fake([
+            '*rest/all/V1/orders/1' => Http::response([], 200),
+        ]);
+
+        $api = MagentoFacade::api('orders')->show(1);
+
+        $this->assertTrue($api->ok());
+    }
 }