API: "name" field added to the Session endpoints

To follow the feature added in the UI, we added the optional field name in the Session endpoints. You can now use this field as following:

• POST create session: new name string field can be sent in request body, it's returned in the response
• GET a session: new name string field in the response
• PUT fully update a session: possible to update new name string field in request, included in response
• PATCH partially update a session: possible to update new name string field in request, included in response

Please refer to the public documentation for more information.