Log Message:
libansilove: update to 1.1.8.

ChangeLog:

libansilove 1.1.8 (2020-01-18)

- Use OpenBSD style(9) for function prototypes and declarations
- Properly reset pcboard buffer when CLS is encountered
- Use memcmp() instead of testing each character one by one in the PCB loader
- Do not use background and foreground variables to handle 24-bit ANSI colors
- Various improvements in the IDF loader