message: Make buffer initial state padding more generous on GL
diff: @@ -980,7 +980,7 @@ uint64_t GLResourceManager::GetSize_InitialState(ResourceId resid, const GLIniti
  if(initial.type == eResBuffer)
  {
  // buffers just have their contents, no metadata needed
  - return initial.bufferLength + WriteSerialiser::GetChunkAlignment() + 16;
  + return initial.bufferLength + WriteSerialiser::GetChunkAlignment() + 64;
  }
  else if(initial.type == eResProgram)
  {
  