Application Scaling for MSW: Next big step

- Added rescale() function for the most of controls
 - Created PrusaBitmap and PrusaButton classes like a wrap to wxBitmap and wxButton accordingly

src/slic3r/GUI/ButtonsDescription.hpp

@@ -4,10 +4,12 @@
 #include <wx/dialog.h>
 #include <vector>
 
+class PrusaBitmap;
+
 namespace Slic3r {
 namespace GUI {
 
-using t_icon_descriptions = std::vector<std::pair<wxBitmap*, std::string>>;
+using t_icon_descriptions = std::vector<std::pair</*wxBitmap*/PrusaBitmap*, std::string>>;
 
 class ButtonsDescription : public wxDialog
 {