Update contract-wrappers everywhere (#2068)

* add validateAndSendTransactionAsync to all wrappers

* remove contract-wrappers from @0x/contracts-extensions

* replace error types in contract-wrappers

* upgrade asset-buyer and asset-swapper to contract-wrappers v11

* update website and 0x.js

* remove calldataOptimizationUtils

packages/contract-wrappers/src/index.ts

@@ -24,4 +24,21 @@ export * from '@0x/contract-addresses';
 
 export { ContractWrappers } from './contract_wrappers';
 export { CoordinatorWrapper } from './coordinator_wrapper';
-export { OrderStatus } from './types';
+
+export { BlockRange } from '@0x/base-contract';
+export {
+    OrderStatus,
+    ContractError,
+    ForwarderError,
+    OrderAndTraderInfo,
+    CoordinatorServerCancellationResponse,
+    CoordinatorServerError,
+    IndexedFilterValues,
+    ContractWrappersConfig,
+    OrderTransactionOpts,
+    TransactionOpts,
+    OrderInfo,
+    EventCallback,
+    DecodedLogEvent,
+    TraderInfo,
+} from './types';