feat(vulkan): vulkan 1.4 core with the user interface and the launcher, shaders split into ogl46/vk14 with SPIR-V binaries loaded first

rendering/screenshot.h

@@ -3,5 +3,7 @@ class screenshot_manager
     static void screenshot_save_thread(char *img , int w, int h);
 
 public:
-	static void make_screenshot();
+	// writes an image of the window to a png file in the directory of the screenshots, on a thread of its own. Image: rgb rows,
+	// tightly packed, the bottom one first (taken over and deleted by the thread)
+	static void save(char *Image, int Width, int Height);
 };