Add Discord APKTool decompilation (Smali source for modding)

- Imported from https://github.com/supermegamestre/Project-Real-Resurrection-3
- APKTool decompilation (Smali bytecode) for modding and rebuilding APK
- Supports both 32-bit (armeabi-v7a) and 64-bit (arm64-v8a) architectures
- Includes full Smali source, resources, and native libraries
- Ready to rebuild APK after modifications with apktool b command
- Added comprehensive README-apktool.md with modding guide

This branch complements the JADX branches:
- Use JADX (main/discord-community) to UNDERSTAND code (readable Java)
- Use APKTool (this branch) to MODIFY and REBUILD APK (editable Smali)

Total: 44,417 files, 538.51 MB Smali source code

smali_classes2/com/ironsource/ac.smali

@@ -0,0 +1,25 @@
+.class public final Lcom/ironsource/ac;
+.super Ljava/lang/Object;
+.source "SourceFile"
+
+
+# static fields
+.field private static final a:Ljava/lang/String; = "deviceOS"
+
+.field private static final b:Ljava/lang/String; = "deviceType"
+
+.field private static final c:Ljava/lang/String; = "applicationKey"
+
+.field private static final d:Ljava/lang/String; = "advId"
+
+.field private static final e:Ljava/lang/String; = "advIdType"
+
+.field private static final f:Ljava/lang/String; = "android"
+
+.field private static final g:Ljava/lang/String; = "externalMediationSource"
+
+.field private static final h:Ljava/lang/String; = "externalMediationData"
+
+.field private static final i:Ljava/lang/String; = "clientParams"
+
+.field public static final j:Ljava/lang/String; = "https://o-ext.mediation.unity3d.com/aemData"