[Improvement] add type definition files (#361)

types/index.d.ts

@@ -0,0 +1,73 @@
+import Vue from 'vue';
+import { VanComponent } from './component';
+import { Toast } from './toast';
+import { Dialog } from './dialog';
+import { Lazyload } from './lazyload';
+import { Waterfall } from './waterfall';
+import { ImagePreview } from './image-preview';
+
+export const version: string
+export function install (vue: typeof Vue): void
+export class Actionsheet extends VanComponent {}
+export class AddressEdit extends VanComponent {}
+export class AddressList extends VanComponent {}
+export class Area extends VanComponent {}
+export class Badge extends VanComponent {}
+export class BadgeGroup extends VanComponent {}
+export class Button extends VanComponent {}
+export class Card extends VanComponent {}
+export class Cell extends VanComponent {}
+export class CellGroup extends VanComponent {}
+export class CellSwipe extends VanComponent {}
+export class Checkbox extends VanComponent {}
+export class CheckboxGroup extends VanComponent {}
+export class Col extends VanComponent {}
+export class ContactCard extends VanComponent {}
+export class ContactEdit extends VanComponent {}
+export class ContactList extends VanComponent {}
+export class CouponCell extends VanComponent {}
+export class CouponList extends VanComponent {}
+export class DatetimePicker extends VanComponent {}
+export class Field extends VanComponent {}
+export class GoodsAction extends VanComponent {}
+export class GoodsActionBigBtn extends VanComponent {}
+export class GoodsActionMiniBtn extends VanComponent {}
+export class Icon extends VanComponent {}
+export class Loading extends VanComponent {}
+export class NavBar extends VanComponent {}
+export class NoticeBar extends VanComponent {}
+export class NumberKeyboard extends VanComponent {}
+export class Pagination extends VanComponent {}
+export class Panel extends VanComponent {}
+export class PasswordInput extends VanComponent {}
+export class Picker extends VanComponent {}
+export class Popup extends VanComponent {}
+export class Progress extends VanComponent {}
+export class PullRefresh extends VanComponent {}
+export class Radio extends VanComponent {}
+export class RadioGroup extends VanComponent {}
+export class Row extends VanComponent {}
+export class Search extends VanComponent {}
+export class Sku extends VanComponent {}
+export class Step extends VanComponent {}
+export class Stepper extends VanComponent {}
+export class Steps extends VanComponent {}
+export class SubmitBar extends VanComponent {}
+export class Swipe extends VanComponent {}
+export class SwipeItem extends VanComponent {}
+export class Switch extends VanComponent {}
+export class SwitchCell extends VanComponent {}
+export class Tab extends VanComponent {}
+export class Tabbar extends VanComponent {}
+export class TabbarItem extends VanComponent {}
+export class Tabs extends VanComponent {}
+export class Tag extends VanComponent {}
+export class TreeSelect extends VanComponent {}
+export class Uploader extends VanComponent {}
+export {
+  Toast,
+  Dialog,
+  Lazyload,
+  Waterfall,
+  ImagePreview
+}