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/internal/ads/zzbef.java

@@ -0,0 +1,12 @@
+package com.google.android.gms.internal.ads;
+
+/* loaded from: classes3.dex */
+public final class zzbef {
+    public static final zzbdv zza;
+
+    static {
+        zzbdv.zza("gads:csi_reporting_ratio", 0.05d);
+        zza = new zzbdv("gads:sdk_csi_server", "https://csi.gstatic.com/csi", 4);
+        zzbdv.zzd("gads:enabled_sdk_csi", false);
+    }
+}