[react-beautiful-dnd] Add ignoreContainerClipping to DroppableProps

* This prop was added in https://github.com/atlassian/react-beautiful-dnd/pull/148
  but was never updated here.

types/react-beautiful-dnd/index.d.ts

@@ -73,6 +73,7 @@ export interface DroppableStateSnapshot {
 export interface DroppableProps {
     droppableId: DroppableId;
     type?: TypeId;
+    ignoreContainerClipping?: boolean;
     isDropDisabled?: boolean;
     direction?: 'vertical' | 'horizontal';
     children(provided: DroppableProvided, snapshot: DroppableStateSnapshot): React.ReactElement<any>;

types/react-beautiful-dnd/react-beautiful-dnd-tests.tsx

@@ -73,7 +73,7 @@ class App extends React.Component<{}, AppState> {
   render() {
     return (
       <DragDropContext onDragStart={this.onDragStart} onDragUpdate={this.onDragUpdate} onDragEnd={this.onDragEnd}>
-        <Droppable droppableId="droppable">
+        <Droppable droppableId="droppable" ignoreContainerClipping={false}>
           {(provided, snapshot) => (
             <div ref={provided.innerRef} style={getListStyle(snapshot.isDraggingOver)} {...provided.droppableProps}>
               {this.state.items.map((item, index) => (