feat(Popover): add new component (#4049)

* feat: api

* chore: config

* feat: popover

* feat: demo

* feat: demo

* feat: demo and test

* feat: test

* feat: test

* chore: test

* fix: test

* chore: fix visible

* fix: cr

* fix: style

* fix: cr

* fix: demo error

* chore: support switch placement

* chore: update snapshot

* chore: class

* fix: cr

* chore: add wait time

* chore: remove skyline

Author: Wesley-0808

packages/components/popover/README.en-US.md

@@ -0,0 +1,44 @@
+:: BASE_DOC ::
+
+## API
+
+
+### Popover Props
+
+name | type | default | description | required
+-- | -- | -- | -- | --
+style | Object | - | CSS(Cascading Style Sheets) | N
+custom-style | Object | - | CSS(Cascading Style Sheets)，used to set style on virtual component | N
+close-on-click-outside | Boolean | true | \- | N
+content | String | - | \- | N
+placement | String | top | options: top/left/right/bottom/top-left/top-right/bottom-left/bottom-right/left-top/left-bottom/right-top/right-bottom | N
+show-arrow | Boolean | true | \- | N
+theme | String | dark | options: dark/light/brand/success/warning/error | N
+visible | Boolean | - | \- | N
+
+### Popover Events
+
+name | params | description
+-- | -- | --
+visible-change | `(visible: boolean)` | \-
+
+### Popover Slots
+
+name | Description
+-- | --
+\- | \-
+content | \-
+
+### Popover External Classes
+
+className | Description
+-- | --
+t-class | \-
+t-class-content | \-
+
+### CSS Variables
+
+The component provides the following CSS variables, which can be used to customize styles.
+Name | Default Value | Description 
+-- | -- | --
+--td-popover-padding | 24rpx | - 

packages/components/popover/README.md

@@ -0,0 +1,68 @@
+---
+title: Popover 弹出气泡
+description: 用于文字提示的气泡框。
+spline: data
+isComponent: true
+---
+
+
+## 引入
+
+全局引入，在 miniprogram 根目录下的`app.json`中配置，局部引入，在需要引入的页面或组件的`index.json`中配置。
+
+```json
+"usingComponents": {
+  "t-popover": "tdesign-miniprogram/popover/popover"
+}
+```
+
+<!-- ## 代码演示 -->
+
+
+### 组件类型
+带箭头的弹出气泡
+
+{{ base }}
+
+## API
+
+
+### Popover Props
+
+名称 | 类型 | 默认值 | 描述 | 必传
+-- | -- | -- | -- | --
+style | Object | - | 样式 | N
+custom-style | Object | - | 样式，一般用于开启虚拟化组件节点场景 | N
+close-on-click-outside | Boolean | true | 是否在点击外部元素后关闭菜单  | N
+content | String | - | 确认框内容 | N
+placement | String | top | 浮层出现位置。可选项：top/left/right/bottom/top-left/top-right/bottom-left/bottom-right/left-top/left-bottom/right-top/right-bottom | N
+show-arrow | Boolean | true | 是否显示浮层箭头 | N
+theme | String | dark | 弹出气泡主题。可选项：dark/light/brand/success/warning/error | N
+visible | Boolean | - | 是否显示气泡确认框 | N
+
+### Popover Events
+
+名称 | 参数 | 描述
+-- | -- | --
+visible-change | `(visible: boolean)` | 确认框显示或隐藏时触发
+
+### Popover Slots
+
+名称 | 描述
+-- | --
+\- | 自定义 `` 显示内容
+content \| 自定义 `content` 显示内容
+
+### Popover External Classes
+
+类名 | 描述
+-- | --
+t-class | 根节点样式类
+t-class-content | 内容样式类
+
+### CSS Variables
+
+组件提供了下列 CSS 变量，可用于自定义样式。
+名称 | 默认值 | 描述 
+-- | -- | --
+--td-popover-padding | 24rpx | -