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/zzgkv.java

@@ -0,0 +1,27 @@
+package com.google.android.gms.internal.ads;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/* loaded from: classes3.dex */
+public final class zzgkv {
+    final Map zza = new HashMap();
+    final Map zzb = new HashMap();
+
+    private zzgkv() {
+    }
+
+    public final zzgkv zza(Enum r2, Object obj) {
+        this.zza.put(r2, obj);
+        this.zzb.put(obj, r2);
+        return this;
+    }
+
+    public final zzgkx zzb() {
+        return new zzgkx(Collections.unmodifiableMap(this.zza), Collections.unmodifiableMap(this.zzb), null);
+    }
+
+    public /* synthetic */ zzgkv(zzgkw zzgkwVar) {
+    }
+}