Added GetScreenSize function to return screen width & height as a Vector2.

src/raylib.h

@@ -986,6 +986,7 @@ RLAPI void SetWindowFocused(void);                                // Set window
 RLAPI void *GetWindowHandle(void);                                // Get native window handle
 RLAPI int GetScreenWidth(void);                                   // Get current screen width
 RLAPI int GetScreenHeight(void);                                  // Get current screen height
+RLAPI Vector2 GetScreenSize(void);                                // Get current screen width and height as a Vector2
 RLAPI int GetRenderWidth(void);                                   // Get current render width (it considers HiDPI)
 RLAPI int GetRenderHeight(void);                                  // Get current render height (it considers HiDPI)
 RLAPI int GetMonitorCount(void);                                  // Get number of connected monitors

src/rcore.c

@@ -762,6 +762,12 @@ int GetScreenHeight(void)
     return CORE.Window.screen.height;
 }
 
+// Get current screen width and height as a Vector2
+Vector2 GetScreenSize(void)
+{
+    return (Vector2){ (float)CORE.Window.screen.width, (float)CORE.Window.screen.height };
+}
+
 // Get current render width which is equal to screen width*dpi scale
 int GetRenderWidth(void)
 {