feat: make zero ex instant container switch between progress and payment

packages/instant/src/containers/connected_zero_ex_instant_container.ts

@@ -0,0 +1,21 @@
+import * as React from 'react';
+import { connect } from 'react-redux';
+
+import { State } from '../redux/reducer';
+import { OrderProcessState } from '../types';
+
+import { ZeroExInstantContainer } from '../components/zero_ex_instant_container';
+
+export interface ConnectedZeroExInstantContainerProps {}
+
+interface ConnectedState {
+    orderProcessState: OrderProcessState;
+}
+
+const mapStateToProps = (state: State, _ownProps: ConnectedZeroExInstantContainerProps): ConnectedState => ({
+    orderProcessState: state.buyOrderState.processState,
+});
+
+export const ConnectedZeroExInstantContainer: React.ComponentClass<ConnectedZeroExInstantContainerProps> = connect(
+    mapStateToProps,
+)(ZeroExInstantContainer);