Export missing types and add OrderValidatorWrapper to hidden constructors

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

@@ -43,6 +43,9 @@ export {
     DecodedLogEvent,
     ExchangeEventArgs,
     TransactionEncoder,
+    BalanceAndAllowance,
+    OrderAndTraderInfo,
+    TraderInfo,
 } from '@0xproject/contract-wrappers';
 
 export { OrderWatcher, OnOrderStateChangeCallback, OrderWatcherConfig } from '@0xproject/order-watcher';

packages/contract-wrappers/src/index.ts

@@ -22,6 +22,9 @@ export {
     OrderInfo,
     EventCallback,
     DecodedLogEvent,
+    BalanceAndAllowance,
+    OrderAndTraderInfo,
+    TraderInfo,
 } from './types';
 
 export { Order, SignedOrder, AssetProxyId } from '@0xproject/types';

packages/monorepo-scripts/src/doc_gen_configs.ts

@@ -39,6 +39,7 @@ export const docGenConfigs: DocGenConfigs = {
         'EtherTokenWrapper',
         'ExchangeWrapper',
         'ForwarderWrapper',
+        'OrderValidatorWrapper',
         'TransactionEncoder',
     ],
     // Some types are not explicitly part of the public interface like params, return values, etc... But we still