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/mbsignalcommon/windvane/a.java

@@ -0,0 +1,14 @@
+package com.mbridge.msdk.mbsignalcommon.windvane;
+
+import com.mbridge.msdk.mbsignalcommon.c.a;
+
+/* loaded from: classes4.dex */
+public final class a {
+    public a.d a;
+    public WindVaneWebView b;
+    public Object c;
+    public String d;
+    public String e;
+    public String f;
+    public String g;
+}