Changes to Retrieve a charge

added the optional property charge/filters/items/charge_code to the response with the 200 status

added the optional property charge/filters/items/lago_id to the response with the 200 status

added the optional property charge/taxes/items/applied_to_billing_entities_codes to the response with the 200 status

the response property charge/taxes/items/description became required for the status 200