[Design] [🚀 Feature Request]: Drawer support onOk and onCancel like Modal

[dengfuping]

Example

API

Property	Description	Type	Default
onCancel	Specify a function that will be called when a user click mask, close button on top left or Cancel button.	(e) => void	-
onOk	Specify a function that will be called when a user click the OK button	(e) => void	-

Usage

• Basic Usage

<Drawer title="Title" onOk={() => {}} onCancel={() => {}}>
  <p>Some contents...</p>
  <p>Some contents...</p>
  <p>Some contents...</p>
</Drawer>

• Hide footer:

<Drawer title="Title" footer={false} onCancel={() => {}}>
  <p>Some contents...</p>
  <p>Some contents...</p>
  <p>Some contents...</p>
</Drawer>

• Custom footer:

<Drawer title="Title" footer={<CustomFooter />} onCancel={() => {}}>
  <p>Some contents...</p>
  <p>Some contents...</p>
  <p>Some contents...</p>
</Drawer>

Implement

• reference: https://github.com/ant-design/ant-design/blob/master/components/modal/Modal.tsx

[dengfuping]

Closed by #228