void ConvertNumComponentsToOffsets(const viskores::cont::UnknownArrayHandle &numComponentsArray, viskores::cont::ArrayHandle< viskores::Id > &offsetsArray, viskores::Id &componentsArraySize, viskores::cont::DeviceAdapterId device=viskores::cont::DeviceAdapterTagAny{})
ConvertNumComponentsToOffsets takes an array of Vec sizes (i.e.