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/facebook/share/model/ShareModelBuilder.smali

@@ -0,0 +1,31 @@
+.class public interface abstract Lcom/facebook/share/model/ShareModelBuilder;
+.super Ljava/lang/Object;
+.source "SourceFile"
+
+# interfaces
+.implements Lcom/facebook/share/ShareBuilder;
+
+
+# annotations
+.annotation system Ldalvik/annotation/Signature;
+    value = {
+        "<M::",
+        "Lcom/facebook/share/model/ShareModel;",
+        "B::",
+        "Lcom/facebook/share/model/ShareModelBuilder<",
+        "TM;TB;>;>",
+        "Ljava/lang/Object;",
+        "Lcom/facebook/share/ShareBuilder<",
+        "TM;TB;>;"
+    }
+.end annotation
+
+
+# virtual methods
+.method public abstract readFrom(Lcom/facebook/share/model/ShareModel;)Lcom/facebook/share/model/ShareModelBuilder;
+    .annotation system Ldalvik/annotation/Signature;
+        value = {
+            "(TM;)TB;"
+        }
+    .end annotation
+.end method