[improvement] GoodsAction: add disabled and loading props (#790)

[improvement] GoodsAction: add disabled and loading props

packages/goods-action-button/index.ts

@@ -6,6 +6,8 @@ VantComponent({
 
   props: {
     text: String,
+    loading: Boolean,
+    disabled: Boolean,
     type: {
       type: String,
       value: 'danger'

packages/goods-action-button/index.wxml

@@ -2,6 +2,8 @@
   square
   size="large"
   type="{{ type }}"
+  loading="{{ loading }}"
+  disabled="{{ disabled }}"
   bind:click="onClick"
 >
   {{ text }}

packages/goods-action/README.md

@@ -80,6 +80,8 @@ Page({
 |-----------|-----------|-----------|-------------|
 | text | 按钮文字 | `String` | - |
 | type | 按钮类型 | `String` | `danger` |
+| disabled | 是否禁用按钮 | `Boolean` | `false` |
+| loading | 是否显示为加载状态 | `Boolean` | `false` |
 | url | 跳转链接 | `String` | - |
 | link-type | 链接跳转类型，可选值为 `redirectTo` `switchTab` `reLaunch` | `String` | `navigateTo` |