Add Discord community version (64-bit only)

- Added realracing3-community.apk (71.57 MB)
- Removed 32-bit support (armeabi-v7a)
- Only includes arm64-v8a libraries
- Decompiled source code included
- Added README-community.md with analysis

decompiled-community/sources/com/unity3d/ads/metadata/PlayerMetaData.java

@@ -0,0 +1,17 @@
+package com.unity3d.ads.metadata;
+
+import android.content.Context;
+
+/* loaded from: classes4.dex */
+public class PlayerMetaData extends MetaData {
+    public static final String KEY_SERVER_ID = "server_id";
+
+    public PlayerMetaData(Context context) {
+        super(context);
+        setCategory("player");
+    }
+
+    public void setServerId(String str) {
+        set(KEY_SERVER_ID, str);
+    }
+}