The skeleton

[canack]

Architecture:

• [x] New tab function should return with default style. Styles can be customized with options
• [x] Use builder pattern

Feature:

• [ ] Add examples directory
• [ ] Sliding text support ( not first priority )
• [ ] Changeable border style (double border, single line, dashed etc.) ( not first priority )
• [x] Changeable border color
• [ ] Changeable tab style (double border, single line, dashed etc.) ( not first priority )
• [x] Changeable tab color
• [ ] Tab alignment Left or Right ( not first priority )
• [x] Widget support ( bottom line can accepts mini tabs )
• [x] Dynamically Add&Remove tabs&widgets
• [ ] If tabs or widget's count&width overflow the terminal's width, view like ---[ content ]---[ 5+ ] ( Tab switching should still supported. User can switch to non printed tabs. )
• [ ] What we should do if any tabs not added? We currently give panic. DeleteTab method shouldn't delete if tab count equal to 1

[canack]

I think skeleton ready to publish after it's first review.