Rename vulkan_api.hpp to vk_api.hpp

Consistant with other vulkan header patterns.
This header in particular is to configure our Vulkan API usage.

include/renderer_vk/vk_api.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#define VK_NO_PROTOTYPES
+#include <vulkan/vulkan.h>
+
+#define VULKAN_HPP_DISPATCH_LOADER_DYNAMIC 1
+#define VULKAN_HPP_NO_EXCEPTIONS
+// Disable asserts on result-codes
+#define VULKAN_HPP_ASSERT_ON_RESULT
+#include <vulkan/vulkan.hpp>
+#include <vulkan/vulkan_format_traits.hpp>
+#include <vulkan/vulkan_hash.hpp>