ncch_container: Apply IPS patch after allocating .bss

This allows an IPS patch to edit .bss. This is useful for game patches
that need to add code, as putting things in .bss allows adding new code
*without* editing .code and thus without having to relocate everything.

src/core/file_sys/ncch_container.h

@@ -271,6 +271,13 @@ public:
      */
     Loader::ResultStatus ReadExtdataId(u64& extdata_id);
 
+    /**
+     * Apply an IPS patch for .code (if it exists).
+     * This should only be called after allocating .bss.
+     * @return bool true if a patch was applied, false otherwise
+     */
+    bool ApplyIPSPatch(std::vector<u8>& code) const;
+
     /**
      * Checks whether the NCCH container contains an ExeFS
      * @return bool check result