Function indy_sys::payments::indy_register_payment_method

#[no_mangle]
pub unsafe extern "C" fn indy_register_payment_method(
    command_handle: CommandHandle, 
    payment_method: CString, 
    create_payment_address: Option<CreatePaymentAddressCB>, 
    add_request_fees: Option<AddRequestFeesCB>, 
    parse_response_with_fees: Option<ParseResponseWithFeesCB>, 
    build_get_payment_sources_request: Option<BuildGetPaymentSourcesRequestCB>, 
    parse_get_payment_sources_response: Option<ParseGetPaymentSourcesResponseCB>, 
    build_payment_req: Option<BuildPaymentReqCB>, 
    parse_payment_response: Option<ParsePaymentResponseCB>, 
    build_mint_req: Option<BuildMintReqCB>, 
    build_set_txn_fees_req: Option<BuildSetTxnFeesReqCB>, 
    build_get_txn_fees_req: Option<BuildGetTxnFeesReqCB>, 
    parse_get_txn_fees_response: Option<ParseGetTxnFeesResponseCB>, 
    build_verify_payment_req: Option<BuildVerifyPaymentReqCB>, 
    parse_verify_payment_response: Option<ParseVerifyPaymentResponseCB>, 
    sign_with_address: Option<SignWithAddressCB>, 
    verify_with_address: Option<VerifyWithAddressCB>, 
    cb: Option<ResponseEmptyCB>
) -> Error