Initial Video, Render, and Properties implementations.

Co-authored-by: Copilot <copilot@github.com>

test/Surface_test.cpp

@@ -0,0 +1,28 @@
+#include <doctest/doctest.h>
+
+#include <hdk/sdl/video/Surface.hpp>
+
+
+TEST_CASE("Surface bindings are exercised") {
+ 
+  auto surface = hdk::sdl::Surface::Create(10, 10, SDL_PIXELFORMAT_RGBA8888);
+  REQUIRE(surface);
+
+  CHECK(surface->w == 10);
+  CHECK(surface->h == 10);
+  CHECK(surface->format == SDL_PIXELFORMAT_RGBA8888);
+
+  surface.Clear(1.0f, 0.0f, 0.0f, 1.0f);
+
+  Uint8 r, g, b, a;
+  CHECK(surface.ReadPixel(0, 0, &r, &g, &b, &a));
+  CHECK(r == 255);
+  CHECK(g == 0);
+  CHECK(b == 0);
+  CHECK(a == 255);
+
+  auto scaled = surface.Scale(20, 20, SDL_ScaleMode::SDL_SCALEMODE_LINEAR);
+  REQUIRE(scaled);
+  CHECK(scaled->w == 20);
+  CHECK(scaled->h == 20);
+}