refactor: accuracy graph subassets (#847)

* refactor: use subassets to load accuracy graphs for iw4,iw5,t5,t6

* fix: not dumping anim names for t5 weapons and t6 attachment unique

* refactor: dump accuracy graphs like a subasset

* refactor: use shared method for accuracy graph filenames

src/Common/Game/IW4/GameIW4.cpp

@@ -23,6 +23,7 @@ namespace
 
     constexpr const char* SUB_ASSET_TYPE_NAMES[]{
         "technique",
+        "accuracygraph",
     };
     static_assert(std::extent_v<decltype(SUB_ASSET_TYPE_NAMES)> == SUB_ASSET_TYPE_COUNT);
 } // namespace