Toolbar changes

The following changes have been made to the layout of the application toolbar buttons:

• The toolbar tabs have been grouped into a single menu.
  
  
• The options for "Point cloud", "Walls and partitions", "Floor slabs", "Openings" and "Columns" are now drop-down menus.
  
  
• The option to import an IFC file has been added to the toolbar via the "Import IFC" option. This way, importing is not needed during the process of creating a new job.