Enhanced Draw tools

• Added a Border option to Highlighter
• Added a Highlight option to Magnifier
• Added left/right click option when Mouse Pointer inserted
• Smoother Pencil and enhanced L-Line
• Draw tools load faster

Other changes

• Added Classic Skin option to Editor under its Settings menu
• Added a new method (by entering diagonal length of screen) to calibrate Screen Ruler
• Other minor improvements and bug fixes