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/util/MapUtils.java

@@ -0,0 +1,33 @@
+package com.google.android.gms.common.util;
+
+import androidx.annotation.NonNull;
+import com.google.android.gms.common.annotation.KeepForSdk;
+import java.util.HashMap;
+
+@KeepForSdk
+/* loaded from: classes2.dex */
+public class MapUtils {
+    @KeepForSdk
+    public static void writeStringMapToJson(@NonNull StringBuilder sb, @NonNull HashMap<String, String> hashMap) {
+        sb.append("{");
+        boolean z = true;
+        for (String str : hashMap.keySet()) {
+            if (!z) {
+                sb.append(",");
+            }
+            String str2 = hashMap.get(str);
+            sb.append("\"");
+            sb.append(str);
+            sb.append("\":");
+            if (str2 == null) {
+                sb.append("null");
+            } else {
+                sb.append("\"");
+                sb.append(str2);
+                sb.append("\"");
+            }
+            z = false;
+        }
+        sb.append("}");
+    }
+}