Added graphics/ImageData class

src/graphics/Batch3D.cpp

@@ -19,7 +19,7 @@ Batch3D::Batch3D(size_t capacity) : capacity(capacity), offset(0), color(1.0f, 1
 	unsigned char pixels[] = {
 			255, 255, 255, 255,
 	};
-	blank = new Texture(pixels, 1, 1);
+	blank = new Texture(pixels, 1, 1, GL_RGBA);
 	_texture = nullptr;
 }