Merge branch 'develop' of github.com:nmfisher/polyvox_filament into develop

ios/include/SceneAsset.hpp

@@ -67,7 +67,7 @@ namespace polyvox {
         size_t skinIndex = 0;
         int lengthInFrames;
         float frameLengthInMs = 0;
-        vector<const math::quatf> frameData;
+        vector<math::quatf> frameData;
     };
 
     struct SceneAsset {

ios/src/FilamentViewer.cpp

@@ -77,7 +77,7 @@
 #include <sstream>
 #include <istream>
 #include <fstream>
-
+#include <filesystem>
 #include <mutex>
 
 #include "Log.hpp"