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

assets/fyb_iframe_endcard_tmpl.html

@@ -0,0 +1,15 @@
+<script>
+    var ifr = document.createElement('iframe');
+
+    window.addEventListener('load', function(e) {
+        ifr.setAttribute('src', '$__SrcIframeUrl__$');
+        ifr.setAttribute('style', 'display:block; border:none; margin:0; padding:0; overflow:hidden;');
+        ifr.width = window.innerWidth;
+        document.body.appendChild(ifr);
+    });
+
+    window.addEventListener('resize', function(e) {
+        ifr.width = document.body.clientWidth;
+        ifr.height = document.body.clientHeight;
+    });
+</script>