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_classes3/com/google/firebase/installations/time/Clock.smali

@@ -0,0 +1,8 @@
+.class public interface abstract Lcom/google/firebase/installations/time/Clock;
+.super Ljava/lang/Object;
+.source "SourceFile"
+
+
+# virtual methods
+.method public abstract currentTimeMillis()J
+.end method

smali_classes3/com/google/firebase/installations/time/SystemClock.smali

@@ -0,0 +1,54 @@
+.class public Lcom/google/firebase/installations/time/SystemClock;
+.super Ljava/lang/Object;
+.source "SourceFile"
+
+# interfaces
+.implements Lcom/google/firebase/installations/time/Clock;
+
+
+# static fields
+.field public static singleton:Lcom/google/firebase/installations/time/SystemClock;
+
+
+# direct methods
+.method public constructor <init>()V
+    .locals 0
+
+    .line 30
+    invoke-direct {p0}, Ljava/lang/Object;-><init>()V
+
+    return-void
+.end method
+
+.method public static getInstance()Lcom/google/firebase/installations/time/SystemClock;
+    .locals 1
+
+    sget-object v0, Lcom/google/firebase/installations/time/SystemClock;->singleton:Lcom/google/firebase/installations/time/SystemClock;
+
+    if-nez v0, :cond_0
+
+    .line 35
+    new-instance v0, Lcom/google/firebase/installations/time/SystemClock;
+
+    invoke-direct {v0}, Lcom/google/firebase/installations/time/SystemClock;-><init>()V
+
+    sput-object v0, Lcom/google/firebase/installations/time/SystemClock;->singleton:Lcom/google/firebase/installations/time/SystemClock;
+
+    :cond_0
+    sget-object v0, Lcom/google/firebase/installations/time/SystemClock;->singleton:Lcom/google/firebase/installations/time/SystemClock;
+
+    return-object v0
+.end method
+
+
+# virtual methods
+.method public currentTimeMillis()J
+    .locals 2
+
+    .line 44
+    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J
+
+    move-result-wide v0
+
+    return-wide v0
+.end method