refactor: move harmonyos project to harmony/ directory

harmony/entry/src/main/ets/entryability/EntryAbility.ets

@@ -0,0 +1,36 @@
+import AbilityConstant from '@ohos.app.ability.AbilityConstant';
+import UIAbility from '@ohos.app.ability.UIAbility';
+import Window from '@ohos.window';
+import Want from '@ohos.app.ability.Want';
+
+export default class EntryAbility extends UIAbility {
+    onCreate(want: Want, param: AbilityConstant.LaunchParam): void {
+        console.info('EntryAbility onCreate');
+    }
+
+    onDestroy(): void {
+        console.info('EntryAbility onDestroy');
+    }
+
+    onWindowStageCreate(windowStage: Window.WindowStage): void {
+        windowStage.loadContent('pages/Index', (err, data) => {
+            if (err.code) {
+                console.error('Failed to load content: ' + JSON.stringify(err));
+                return;
+            }
+            console.info('Succeeded in loading content: ' + JSON.stringify(data));
+        });
+    }
+
+    onWindowStageDestroy(): void {
+        console.info('EntryAbility onWindowStageDestroy');
+    }
+
+    onForeground(): void {
+        console.info('EntryAbility onForeground');
+    }
+
+    onBackground(): void {
+        console.info('EntryAbility onBackground');
+    }
+}