Catch file open events before file loaders are loaded
Catch file open events before file loaders are loaded

The event is essentially delayed. The filename is put in a list by the event handler. The list of files is then loaded after all plug-ins are loaded.

Contributes to issue CURA-730.

hmflash/Cura,senttech/Cura,senttech/Cura,fieldOfView/Cura,totalretribution/Cura,Curahelper/Cura,ynotstartups/Wanhao,hmflash/Cura,totalretribution/Cura,Curahelper/Cura,fieldOfView/Cura,ynotstartups/Wanhao