👀 A modern watch command. Time machine and pager etc.

Features: - Basic features of original watch command. * Execute command periodically, and display the result. * color output. * diff highlight. - Time machine mode. 😎 * Rewind like video. * Go to the past, and back to the future. - See output in pager. - Vim like keymaps. - Search text. - Suspend and restart execution. - Run command in precise intervals forcibly. - Customize keymappings. - Customize color.