Implement improved physical device selection

[yeetari]

Closes https://github.com/inexorgame/vulkan-renderer/issues/481 Closes https://github.com/inexorgame/vulkan-renderer/issues/457

• [x] Make is_device_suitable actually take required features into account
• [x] Pass required features to VkDeviceCreateInfo
• [x] Bring over vk_tools/enumerate.cpp from hanni's original PR
• [x] Handle no suitable device properly in pick_best_physical_device (either optional or exception)
• [x] Take into account --gpu (should be handled in application.cpp)
• [x] Implement optional and required device features
• [x] Add some unit tests