rewrite in typescript

#1846

- [x] Carousel
- [x] Cascader
- [x] Transfer
- [x] Tree

-Tree
-checkable is boolean type, instead of assigning a ReactElement to it,
I use Ternary Operators.

components/transfer/list.tsx

@@ -18,6 +18,7 @@ interface TransferListProps {
     prefixCls?: string,
     /** 数据源 */
     dataSource: Array<TransferItem>,
+    filter?: TransferItem,
      /** 是否显示搜索框 */
     showSearch?: boolean,
      /** 搜索框的默认值 */
@@ -27,7 +28,8 @@ interface TransferListProps {
     style?: React.CSSProperties,
     handleFilter?: Function,
     handleSelect?: Function,
-    handleSelectAll?: Function
+    handleSelectAll?: Function,
+    handleClear?: Function,
      /** 每行渲染函数 */
     render?: Function,
      /** 主体渲染函数 */
@@ -36,6 +38,9 @@ interface TransferListProps {
     footer?: Function,
      /** 选中项 */
     checkedKeys?: Array<TransferItem>;
+    checkStatus?: boolean,
+    position?: string,
+    notFoundContent?: React.ReactNode | string,
 }
 
 export default class TransferList extends React.Component<TransferListProps, any> {