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/google/android/gms/common/data/DataBufferObserver.java

@@ -0,0 +1,23 @@
+package com.google.android.gms.common.data;
+
+import androidx.annotation.NonNull;
+
+/* loaded from: classes2.dex */
+public interface DataBufferObserver {
+
+    public interface Observable {
+        void addObserver(@NonNull DataBufferObserver dataBufferObserver);
+
+        void removeObserver(@NonNull DataBufferObserver dataBufferObserver);
+    }
+
+    void onDataChanged();
+
+    void onDataRangeChanged(int i, int i2);
+
+    void onDataRangeInserted(int i, int i2);
+
+    void onDataRangeMoved(int i, int i2, int i3);
+
+    void onDataRangeRemoved(int i, int i2);
+}