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/common/collect/EmptyImmutableSetMultimap.java

@@ -0,0 +1,15 @@
+package com.google.common.collect;
+
+/* loaded from: classes3.dex */
+public class EmptyImmutableSetMultimap extends ImmutableSetMultimap {
+    public static final EmptyImmutableSetMultimap INSTANCE = new EmptyImmutableSetMultimap();
+    private static final long serialVersionUID = 0;
+
+    private Object readResolve() {
+        return INSTANCE;
+    }
+
+    public EmptyImmutableSetMultimap() {
+        super(ImmutableMap.of(), 0, null);
+    }
+}