Graphics preferences menu

• "Refresh and zoom" menu item
• "Zoom info" menu item
• "Pen colour and width" menu item
• "Legend font selection" menu item
• "Draw Mini-CAD elements first" menu item
• "Mini-CAD toolbar" and "Header toolbar" menu items
• "Toolbar preferences" menu item
• "3D Toolbar" menu item
• "General legend" menu item
• "Soil properties legend" menu item
• "Section legend" menu item
• "kr = f(u) function legend" menu item
• "nw = f(u) function legend" menu item
• "k = f(t) function legend" menu item
• "Hydrograph legend" menu item
• "Hydrograph progress legend" menu item
• "Move objects" menu item
• "Save graphics preferences" menu item
• "Load graphics preferences" menu item