Add multi-language draw_line usage example

public/usage-examples/graphics/draw_line-2-example-oop.cs

@@ -0,0 +1,25 @@
+using SplashKitSDK;
+using static SplashKitSDK.SplashKit;
+
+namespace DrawLineExample
+{
+    public class Program
+    {
+        public static void Main()
+        {
+            OpenWindow("Draw Line Example", 800, 600);
+
+            while (!QuitRequested())
+            {
+                ProcessEvents();
+                ClearScreen(ColorWhite());
+
+                DrawLine(ColorRed(), 100, 100, 700, 500);
+
+                RefreshScreen(60);
+            }
+
+            CloseAllWindows();
+        }
+    }
+}

public/usage-examples/graphics/draw_line-2-example-top-level.cs

@@ -0,0 +1,15 @@
+using static SplashKitSDK.SplashKit;
+
+OpenWindow("Draw Line Example", 800, 600);
+
+while (!QuitRequested())
+{
+    ProcessEvents();
+    ClearScreen(ColorWhite());
+
+    DrawLine(ColorRed(), 100, 100, 700, 500);
+
+    RefreshScreen(60);
+}
+
+CloseAllWindows();

public/usage-examples/graphics/draw_line-2-example.cpp

@@ -0,0 +1,19 @@
+#include "splashkit.h"
+
+int main()
+{
+    open_window("Draw Line Example", 800, 600);
+
+    while (!quit_requested())
+    {
+        process_events();
+        clear_screen(COLOR_WHITE);
+
+        draw_line(COLOR_RED, 100, 100, 700, 500);
+
+        refresh_screen(60);
+    }
+
+    close_all_windows();
+    return 0;
+}

public/usage-examples/graphics/draw_line-2-example.py

@@ -0,0 +1,13 @@
+from splashkit import *
+
+open_window("Draw Line Example", 800, 600)
+
+while not quit_requested():
+    process_events()
+    clear_screen_to_white()
+
+    draw_line(color_red(), 100, 100, 700, 500)
+
+    refresh_screen_with_target_fps(60)
+
+close_all_windows()

public/usage-examples/graphics/draw_line-2-example.txt

@@ -0,0 +1 @@
+Draw a dynamic red line across the screen