UI rewrite to use `prompt()` about todoman HOT 3 OPEN

Not sure if to ask about all fields each time or not.

How about leaving it to the users to set up classes of todos in their config files?

sample config:

class_a = "default;summary"
class_b = "summary,location"
class_c = "*"

Here, default class a has just the summary, is used when todo new is called with no option or todo new -c a

todo new -c b additionally asks for location and class c for everything (but you could still skip by entering nothing).

from todoman.

I like this approach, will definitely keep it in mind.

from todoman.

I was wondering if it could be [none]/[d]one
With a single "d" saving the todo in the actual state.

from todoman.