Graphics preferences menu

• "Refresh and zoom" menu item
• "Zoom info" menu item
• GGU-LAPTILE: "Legend font selection" menu item
• "Pen colour and width" menu item
• "Mini-CAD toolbar" and "Header toolbar" menu items
• "Toolbar preferences" menu item
• "General legend" menu item
• "Soil properties legend" menu item
• "Design legend" menu item
• "Subgrade modulus legend" menu item
• "Section legend" menu item
• "p-y curves legend" menu item
• "Move objects" menu item
• "Save graphics preferences" menu item
• "Load graphics preferences" menu item