Add speaker identification demo for HarmonyOS (#1608)

harmony-os/SherpaOnnxSpeakerIdentification/entry/src/main/ets/pages/Permission.ets

@@ -0,0 +1,26 @@
+// This file is modified from
+// https://gitee.com/ukSir/hmchat2/blob/master/entry/src/main/ets/utils/permissionMananger.ets
+import { abilityAccessCtrl, bundleManager, common, Permissions } from '@kit.AbilityKit';
+
+export function allAllowed(permissions: Permissions[]): boolean {
+  if (permissions.length == 0) {
+    return false;
+  }
+
+  const mgr: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
+
+  const bundleInfo = bundleManager.getBundleInfoForSelfSync(bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION);
+
+  let tokenID: number = bundleInfo.appInfo.accessTokenId;
+
+  return permissions.every(permission => abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED ==
+  mgr.checkAccessTokenSync(tokenID, permission));
+}
+
+export async function requestPermissions(permissions: Permissions[]): Promise<boolean> {
+  const mgr: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
+  const context: Context = getContext() as common.UIAbilityContext;
+
+  const result = await mgr.requestPermissionsFromUser(context, permissions);
+  return result.authResults.length > 0 && result.authResults.every(authResults => authResults == 0);
+}