message: Fix the validation error that there's not enough descriptors left in the pool.
diff: @@ -412,9 +412,9 @@ public:
  Pool
  */
  std::vector<VkDescriptorPoolSize> poolSizes = {
  - vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 4),
  - vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 4),
  - vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, 4),
  + vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, attachments.size() + 1),
  + vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, attachments.size() + 1),
  + vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, attachments.size() * 2 + 1),
  };
  VkDescriptorPoolCreateInfo descriptorPoolInfo = vks::initializers::descriptorPoolCreateInfo(static_cast<uint32_t>(poolSizes.size()), poolSizes.data(), 4);
  VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
  