* Update termbox.h from upstream
* Fix word boundary detection
Add suspend (C-Z) support
Bugfix: numerical input on musl-based systems
* Change status line coordinate display to display length
* Fix: WRAP_WIDTH (display length) being assigned to coord.col (buffer length)
Further fix positioning with previous/next match
Fix positioning in "find next/find previous"
Hide cursor when help dialog is open (it was drawn over the help dialog)
Bugfix: joining lines under specific conditions; avoid inserting additional
spaces
* Bugfix: Fix wrapping logic when typing in the middle of a long line
* Introduce struct Coord to hold row and column
* Use stdint.h instead of bits/stdint-uintn.h
* Replace DrawState.in_* with DrawState.mode
* Add cut to paste buffer (C-X or X in command mode)
* Minor u32_draw_string edge case fix