Add stored object creation endpoint

Introduced a new API endpoint to create stored objects with access control for roles 'ROLE_ADMIN' and 'ROLE_USER'. Updated corresponding routes, removed unused dependencies, and added unit tests to ensure functionality.

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

@@ -21,18 +21,11 @@ components:
           type: string
 
 paths:
-  /1.0/docstore/stored-object.json:
+  /1.0/doc-store/stored-object/create:
     post:
       tags:
         - storedobject
       summary: Create a stored object
-      requestBody:
-        description: "A stored object"
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: "#/components/schemas/StoredObject"
       responses:
         200:
           description: "OK"