Added frame buffer support.

include/dawn/display/framebuffer.h

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "../libs.h"
+#include "texture.h"
+
+typedef struct {
+  GLuint fboId;
+  GLuint rboId;
+  texture_t *texture;
+} framebuffer_t;