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/games/GameBuffer.java

@@ -0,0 +1,19 @@
+package com.google.android.gms.games;
+
+import androidx.annotation.NonNull;
+import com.google.android.gms.common.data.AbstractDataBuffer;
+
+/* loaded from: classes2.dex */
+public final class GameBuffer extends AbstractDataBuffer<Game> {
+    @Override // com.google.android.gms.common.data.AbstractDataBuffer, com.google.android.gms.common.data.DataBuffer
+    @NonNull
+    public Game get(int i) {
+        throw null;
+    }
+
+    @Override // com.google.android.gms.common.data.AbstractDataBuffer, com.google.android.gms.common.data.DataBuffer
+    @NonNull
+    public final /* bridge */ /* synthetic */ Object get(int i) {
+        throw null;
+    }
+}