feat: 구글 애드몹 패키지 추가(안드로이드 용만 추가)

Gameton-06/Assets/Plugins/Android/GoogleMobileAdsPlugin.androidlib/AndroidManifest.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+This Google Mobile Ads plugin library manifest will get merged with your
+application's manifest, adding the necessary metadata
+required for displaying ads.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.unity.ads"
+    android:versionName="1.0"
+    android:versionCode="1">
+    <uses-sdk android:minSdkVersion="21"/>
+  <application>
+    <uses-library android:required="false" android:name="org.apache.http.legacy"/>
+  </application>
+</manifest>