[new feature] Dialog: support component call (#593)

docs/demos/views/field.vue

@@ -68,13 +68,9 @@ export default {
       title3: '禁用输入框',
       title4: '错误提示',
       title5: '高度自适应',
-      username: '用户名',
-      password: '密码',
       message: '留言',
       phone: '手机号',
       phonePlaceholder: '请输入手机号',
-      usernamePlaceholder: '请输入用户名',
-      passwordPlaceholder: '请输入密码',
       messagePlaceholder: '请输入留言',
       inputDisabled: '输入框已禁用',
       phoneError: '手机号格式错误'
@@ -84,13 +80,9 @@ export default {
       title3: 'Disabled',
       title4: 'Error info',
       title5: 'Auto resize',
-      username: 'Username',
-      password: 'Password',
       message: 'Message',
       phone: 'Phone',
       phonePlaceholder: 'Phone',
-      usernamePlaceholder: 'Username',
-      passwordPlaceholder: 'Password',
       messagePlaceholder: 'Message',
       inputDisabled: 'Disabled',
       phoneError: 'Invalid phone'