Printables.com support (associate prusaslicer:// link explicitly) (#5416)

* Enable ability to open `prusaslicer://` links

* Add needed function to miniz

* Import Zip Functionality

Allows zip file to be drag and dropped or imported via the menu option

Based on prusa3d/PrusaSlicer@ce38e57 and current master branch files

* Update dialog style to match Orca

* Ensure link is from printables

* add toggle option in preferences

doesn't actually control anything yet

* Add Downloader classes

As-is from PS master

* Create Orca Styled Variant of Icons

* Add Icons to ImGui

* Use PS's Downloader impl for `prusaslicer://` links

* Implement URL Registering on Windows

* Implement prusaslicer:// link on macOS

* Remove unnecessary class name qualifier in Plater.hpp

* Add downloader desktop integration registration and undo

* Revert Info.plist

* register prusaslicer:// on user request only

* fix build error

* fix single instance problem

* format

* add orcalicer:// handler for Mac
Attempt to add Linux support but seems not working

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Co-authored-by: Ocraftyone <Ocraftyone@users.noreply.github.com>

src/libslic3r/AppConfig.cpp

@@ -333,11 +333,6 @@ void AppConfig::set_defaults()
         set("download_path", "");
     }
 
-    // Orca
-    if (get("ps_url_registered").empty()) {
-        set_bool("ps_url_registered", false);
-    }
-
     if (get("mouse_wheel").empty()) {
         set("mouse_wheel", "0");
     }