Gets accounts list, both access and expense accounts
[ { "id": 3, "code": "123", "accountable_type": "AssetAccount", "name": "Another Asset Account", "url":"https://app.bezala.com/api/accounts/3", "assignee_ids":[2], "position": 1, "default_vat_id": null, "credit_cards": [] }, { "id": 66, "code": "7680", "accountable_type": "ExpenseAccount", "name": "Atk-laitteet (<3v. kalusto)", "url": "https://app.bezala.com/api/accounts/66", "assignee_ids": [3, 4, 5], "position": 25, "default_vat_id": 4, "limit": 20, "show_participants_field": false } ]