[WIP] Add postal code search endpoint and controller integration

Introduced a new API endpoint `/api/1.0/main/address-reference/postal-code/search` for searching postal codes matching a query string. Implemented `PostalCodeForAddressReferenceApiController` to handle requests and integrated with `PostalCodeForAddressReferenceRepository`. Enhanced repository to include `country_name` in results by decoding JSON data. Updated API specifications accordingly.

src/Bundle/ChillMainBundle/chill.api.specs.yaml

@@ -614,6 +614,25 @@ paths:
                     description: "Unauthorized"
                 400:
                     description: "Bad Request"
+    /1.0/main/address-reference/postal-code/search:
+        get:
+            tags:
+                - address
+            summary: Search for postal code that can contains the search query
+            parameters:
+                - name: q
+                  in: query
+                  required: true
+                  description: The search pattern
+                  schema:
+                      type: string
+            responses:
+                200:
+                    description: "ok"
+                401:
+                    description: "Unauthorized"
+                400:
+                    description: "Bad Request"
     /1.0/main/postal-code/search.json:
         get:
             tags: