message: add missing headers to SDK install
diff: @@ -239,6 +239,8 @@ OSPRAY_INSTALL_SDK_HEADERS(
  OSPRAY_INSTALL_SDK_HEADERS(
  fb/FrameBuffer.h
  fb/FrameBuffer.ih
  + fb/LocalFB.h
  + fb/LocalFB.ih
  fb/PixelOp.h
  fb/Tile.h
  fb/Tile.ih
  @@ -250,6 +252,7 @@ OSPRAY_INSTALL_SDK_HEADERS(
  geometry/Geometry.h
  geometry/Geometry.ih
  geometry/Instance.h
  + geometry/Instance.ih
  geometry/Isosurfaces.h
  geometry/Slices.h
  geometry/Spheres.h
  