devel/ncurses port

[Peter Thoenen]

Thinking about possibly picking up maintainership on this as two other
ports I maintain require it (got me why though, its a legacy
run_depends, possible a FBSD 4 holdover?).  Not that big a term guy
though.

Anybody want to fill me in on the differences of lets say ncurse 5.5
and the builtin fbsd 6 ncurses packages?  Do we gain anything by
replacing the native FBSD term with this one?