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/facebook/ads/internal/util/common/Preconditions.java

@@ -0,0 +1,29 @@
+package com.facebook.ads.internal.util.common;
+
+import android.os.Looper;
+import androidx.annotation.Keep;
+import com.facebook.infer.annotation.Nullsafe;
+
+@Keep
+@Nullsafe(Nullsafe.Mode.LOCAL)
+/* loaded from: classes2.dex */
+public final class Preconditions {
+    public static <T> T checkNotNull(T t, String str) {
+        if (t != null) {
+            return t;
+        }
+        throw new IllegalArgumentException(str);
+    }
+
+    public static void checkIsTrue(boolean z, String str) {
+        if (!z) {
+            throw new IllegalArgumentException(str);
+        }
+    }
+
+    public static void checkIsOnMainThread() {
+        if (Looper.myLooper() != Looper.getMainLooper()) {
+            throw new RuntimeException("Must be called from the UiThread");
+        }
+    }
+}