This validation error is spammed on some titles, asserting that VkDescriptorSet 0x0[] was destroyed.
This is likely a validation layer bug when using VK_KHR_push_descriptor, which can avoid using traditional VkDescriptorSet. It should be safe to ignore for now.
Initialize debug callbacks (messenger) from a separate file. This allows
sharing code with different backends.
Change our Vulkan error handling to use exceptions instead of error
codes, simplifying the initialization process.
