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/datatransport/cct/StringMerger.java

@@ -0,0 +1,19 @@
+package com.google.android.datatransport.cct;
+
+/* loaded from: classes2.dex */
+public abstract class StringMerger {
+    public static String mergeStrings(String str, String str2) {
+        int length = str.length() - str2.length();
+        if (length < 0 || length > 1) {
+            throw new IllegalArgumentException("Invalid input received");
+        }
+        StringBuilder sb = new StringBuilder(str.length() + str2.length());
+        for (int i = 0; i < str.length(); i++) {
+            sb.append(str.charAt(i));
+            if (str2.length() > i) {
+                sb.append(str2.charAt(i));
+            }
+        }
+        return sb.toString();
+    }
+}