Function cmd_acl_create 

pub async fn cmd_acl_create(
    client: &VtaClient,
    did: String,
    role: String,
    label: Option<String>,
    contexts: Vec<String>,
    expires_at: Option<u64>,
    step_up_approver: Option<String>,
    step_up_require: Option<String>,
    approve_all: bool,
    approve_contexts: Vec<String>,
    allowed_keys: Option<Vec<String>>,
) -> Result<(), Box<dyn Error>>