openharmony 鸿蒙 js-apidiff-CoreFileKit

Change Type	Old Version	New Version	d.ts File
syscap change	Class name: picker; API declaration: export enum DocumentPickerMode DIfferences: SystemCapability.FileManagement.UserFileService.FolderSelection	Class name: picker; API declaration: export enum DocumentPickerMode DIfferences: SystemCapability.FileManagement.UserFileService	api/@ohos.file.picker.d.ts
New API	NA	Class name: DocumentViewPicker; API declaration: getSelectedIndex(): number; DIfferences: getSelectedIndex(): number;	api/@ohos.file.picker.d.ts