Add test command

[rikuson]

quiz test # interactive quiz
quiz test --non-interactive # For GitHub Action
quiz test --cycle ebbinghaus # Review cycle

GitHub Action can be used to notify what to review today automatically.
--cycle should be settable with config file.

[rikuson]

Enable to define custom cycle as function.

[rikuson]

cycle should be renamed to filter

[rikuson]

Does it accept stdin?
Then it should be case ignore.

[rikuson]

https://www.jstage.jst.go.jp/article/pacjpa/78/0/78_1EV-1-091/_pdf

[rikuson]

Should scoring function be customizable too?

[rikuson]

Should scoring function be extension?
Should quiz only manage question and answer?

[rikuson]

dialog or pinetry command as interface?
or
https://github.com/metal3d/bashsimplecurses