Function indy_sys::ledger::indy_append_txn_author_agreement_acceptance_to_request

#[no_mangle]
pub unsafe extern "C" fn indy_append_txn_author_agreement_acceptance_to_request(
    command_handle: Handle, 
    request_json: CString, 
    text: CString, 
    version: CString, 
    hash: CString, 
    acc_mech_type: CString, 
    time_of_acceptance: u64, 
    cb: Option<ResponseStringCB>
) -> Error