message: Add extra protection for valid queries to GetBufferData
diff: @@ -1717,6 +1717,12 @@ void VulkanDebugManager::GetBufferData(ResourceId buff, uint64_t offset, uint64_
  VkDevice dev = m_pDriver->GetDev();
  const VkDevDispatchTable *vt = ObjDisp(dev);
  + if(!m_pDriver->GetResourceManager()->HasCurrentResource(buff))
  + {
  + RDCERR("Getting buffer data for unknown buffer/memory %s!", ToStr(buff).c_str());
  + return;
  + }
  +
  WrappedVkRes *res = m_pDriver->GetResourceManager()->GetCurrentResource(buff);
  if(res == VK_NULL_HANDLE)
  