explicitly include ResourceBuffer.h in generated bindings so we can actually use it on web

dart_filament/ffigen/native.yaml

@@ -3,9 +3,11 @@ headers:
   entry-points:
     - '../native/include/DartFilamentFFIApi.h'
     - '../native/include/DartFilamentApi.h'
+    - '../native/include/ResourceBuffer.h'
   include-directives:
     - '../native/include/DartFilamentFFIApi.h'
     - '../native/include/DartFilamentApi.h'
+    - '../native/include/ResourceBuffer.h'
 ffi-native:
   assetId: package:dart_filament/dart_filament.dart
 ignore-source-errors: true