Split new GL3/GLES2 drivers

The classes are tiny wrappers currently but should they be customized, they are there

source/Irrlicht/OpenGL3/Driver.cpp

@@ -0,0 +1,22 @@
+// Copyright (C) 2023 Vitaliy Lobachevskiy
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in Irrlicht.h
+
+#include "Driver.h"
+
+namespace irr {
+namespace video {
+
+	E_DRIVER_TYPE COpenGL3Driver::getDriverType() const {
+		return EDT_OPENGL3;
+	}
+
+	IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager)
+	{
+		COpenGL3Driver* driver = new COpenGL3Driver(params, io, contextManager);
+		driver->genericDriverInit(params.WindowSize, params.Stencilbuffer);	// don't call in constructor, it uses virtual function calls of driver
+		return driver;
+	}
+
+}
+}

source/Irrlicht/OpenGL3/Driver.h

@@ -0,0 +1,19 @@
+// Copyright (C) 2023 Vitaliy Lobachevskiy
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in Irrlicht.h
+
+#pragma once
+#include "OpenGL/Driver.h"
+
+namespace irr {
+namespace video {
+
+	class COpenGL3Driver : public COpenGL3DriverBase {
+		friend IVideoDriver* createOpenGL3Driver(const SIrrlichtCreationParameters& params, io::IFileSystem* io, IContextManager* contextManager);
+	public:
+		using COpenGL3DriverBase::COpenGL3DriverBase;
+		E_DRIVER_TYPE getDriverType() const override;
+	};
+
+}
+}