added some opengl files TODO: fix up using glew as optional

include/arc/graphics/glfw/window.h

@@ -0,0 +1,27 @@
+#ifndef ARC_OPENGL_WINDOW_H_
+#define ARC_OPENGL_WINDOW_H_
+
+#ifdef ARC_GLFW_WINDOW
+
+#define GLEW_STATIC
+#include <GL/glew.h>
+
+#include "arc/graphics/window.h"
+#include <GLFW/glfw3.h>
+
+typedef GLFWwindow ARC_WindowType;
+
+/**
+ * @brief struct for info needed to create a GLFWwindow
+ *
+ * @note this is what needs to be passed into the data parameter for ARC_Window_Create
+ */
+struct ARC_WindowInfo {
+    char   *title;
+    int     w;
+    int     h;
+};
+
+#endif // !ARC_GLFW_WINDOW
+
+#endif // !ARC_GLFW_WINDOW_H_