Plugin :

• Updated the GMA iOS SDK dependency version to 13.4.0.
• Updated the GMA Android SDK dependency version to 25.3.0.
• Updated the GMA Android Next-Gen SDK dependency version to 1.1.1.
• Added NativeOverlay support for GMA Android Next-Gen SDK.
• Added next_gen_resolution_strategy.gradle to use lower webkit and error_prone_annotation library to support older Unity Editors.
• Fixed an issue with fetching error code from Next-Gen AdInspectorError Class.
• Added destroyAll() support for Preloading APIs when using Next-Gen SDK
• Fixed getRewardItem() API returning NPE on UnityRewardedAd and UnityRewardedInterstitialAd class when using Next-Gen SDK.