Changes:

• Optimize ClearLines by reducing it to a single print statement

Added:

• Add function for setting terminal scrolling region (aka CSR)
• Implement cursor back/forward functions
• Add sequences and functions for saving and restoring the cursor
• Add sequences and functions for line insertion and deletion
• Add mouse sequences and functions (#8)
• Add Style.Width, which returns the width of printable runes

Fixed:

• Fix missing color conversion in ansi256ToANSIColor