message: Reserve a little more space in initial contents for sparse table
  * Even if not present we serialise a bool indicating that it's not present,
  which needs to be reserved.
diff: @@ -407,6 +407,8 @@ uint64_t D3D12ResourceManager::GetSize_InitialState(ResourceId id, const D3D12In
  uint64_t ret =
  WriteSerialiser::GetChunkAlignment() + 16 + uint64_t(buf ? buf->GetDesc().Width : 0);
  + ret += 16;
  +
  if(data.sparseTable)
  ret += 16 + data.sparseTable->GetSerialiseSize();
  