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• export scrollbar module

Changes

• Add exit tip to mconfdialog
• Improve lcurses to register more virtual keys
• Improve back and select in mconfdialog

改进

• mconfdialog 添加退出确认提示
• 改进 lcurses 注册更多的虚拟按键
• 改进 mconfdialog 操作体验，返回上级页面自动切换到选择按钮

• fix some bugs for scrolling

• Support mouse event
• Support scrollbar

Support mouse events for pdcurses

• Support mouse event, see https://github.com/tboox/ltui/issues/14

• Support resize