Curse-less Unix terminal driver

[migueldeicaza]

Currently, TermKit relies on ncurses, which poses a number of problems:

• Sometimes the library has not been updated in years, so we need to resort to fallbacks, or avoid newer capabilities
• Sometimes it has been compiled with different options or modern capabilities were not enabled at build time.

Some of the very concrete examples include Apple's version that does not even support bold colors in ncurses, let alone 256 colors or true color.

So it might be time to implement a native driver, both one that can work with arbitrary terminfo databases, as well as one for "true" xterm emulators, where we can leverage the entire set of xterm capabilities.