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/mbridge/msdk/tracker/network/b.java

@@ -0,0 +1,22 @@
+package com.mbridge.msdk.tracker.network;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/* loaded from: classes4.dex */
+public interface b {
+
+    public static class a {
+        public byte[] a;
+        public String b;
+        public long c;
+        public long d;
+        public long e;
+        public long f;
+        public Map<String, String> g = Collections.emptyMap();
+        public List<h> h;
+    }
+
+    void a(String str, a aVar);
+}