MAGETWO-44473: Unable to get Carts information using search criteria - API

- Changed webapi file to point to the correct route for search request.

Author: Hayder Sharhan

app/code/Magento/Quote/etc/webapi.xml

@@ -15,7 +15,7 @@
             <resource ref="Magento_Cart::manage" />
         </resources>
     </route>
-    <route url="/V1/carts" method="GET">
+    <route url="/V1/carts/search" method="GET">
         <service class="Magento\Quote\Api\CartRepositoryInterface" method="getList"/>
         <resources>
             <resource ref="Magento_Cart::manage" />