Add OrderValidatorWrapper to public interface

packages/0x.js/src/index.ts

@@ -9,6 +9,7 @@ export {
     ERC20ProxyWrapper,
     ERC721ProxyWrapper,
     ForwarderWrapper,
+    OrderValidatorWrapper,
     IndexedFilterValues,
     BlockRange,
     ContractWrappersConfig,

packages/contract-wrappers/src/index.ts

@@ -6,6 +6,7 @@ export { ExchangeWrapper } from './contract_wrappers/exchange_wrapper';
 export { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
 export { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
 export { ForwarderWrapper } from './contract_wrappers/forwarder_wrapper';
+export { OrderValidatorWrapper } from './contract_wrappers/order_validator_wrapper';
 
 export { TransactionEncoder } from './utils/transaction_encoder';