integrate quick panel and new color picker

src/app.h

@@ -32,6 +32,7 @@
 #include "main.h"
 #endif
 #include "node_panel_grid.h"
+#include "node_panel_quick.h"
 
 class App
 {
@@ -64,6 +65,7 @@ public:
     std::shared_ptr<NodePanelColor> color;
     std::shared_ptr<NodePanelStroke> stroke;
     std::shared_ptr<NodePanelGrid> grid;
+    NodePanelQuick* quick;
     NodeCanvas* canvas;
     Node* current_panel = nullptr;
     NodeScroll* panels;