implemented SDL3 as an option for window manager

TSE_OpenGlImpl/src/OpenGLRenderingBackend.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "interfaces/IRenderingBackend.hpp"
+
+#define TSE_OPENGL_VERSION_MAJOR 3
+#define TSE_OPENGL_VERSION_MINOR 3
+
+namespace TSE::OpenGL
+{
+    class OpenGLRenderingBackend : public IRenderingBackend
+    {
+        private:
+
+        public:
+        OpenGLRenderingBackend(Color _backgroundColor, bool _vsync);
+        OpenGLRenderingBackend(Color _backgroundColor, bool _vsync, int _samples, bool _useseImGui);
+        ~OpenGLRenderingBackend();
+
+        void InitPreWindow() override;
+        bool InitPostWindow() override;
+        bool InitEnd() override;
+
+        void onResize(int width, int height) override;
+        void onUpdate() const override;
+        void onClear() const override;
+        void onClearDepthBuffer() const override;
+    };
+} // namespace OpenGL