Support loading text keys for objects without a skeleton

This means we can no longer map them to bone IDs, but they are unused anyway.

Required to load text keys from the default head models (such as Talk: Start/Stop and Blink: Start/Stop)

components/nifogre/ogrenifloader.cpp

@@ -1038,11 +1038,7 @@ class NIFObjectLoader
             {
                 const Nif::NiTextKeyExtraData *tk = static_cast<const Nif::NiTextKeyExtraData*>(e.getPtr());
 
-                if (scene->mSkelBase)
-                {
-                    int trgtid = NIFSkeletonLoader::lookupOgreBoneHandle(name, node->recIndex);
-                    extractTextKeys(tk, scene->mTextKeys[trgtid]);
-                }
+                extractTextKeys(tk, scene->mTextKeys);
             }
             else if(e->recType == Nif::RC_NiStringExtraData)
             {

components/nifogre/ogrenifloader.hpp

@@ -69,7 +69,7 @@ struct ObjectScene {
     // The maximum length on any of the controllers. For animations with controllers, but no text keys, consider this the animation length.
     float mMaxControllerLength;
 
-    std::map<int,TextKeyMap> mTextKeys;
+    TextKeyMap mTextKeys;
 
     MaterialControllerManager mMaterialControllerMgr;