Add GCI timeline

[blazeu]

The data can be scraped on build, from
https://codein.withgoogle.com/api/program/current/

[andrewda]

Do we know any of the state values besides competition_open? Or should everything just be done using the provided dates?

[blazeu]

I think the value of state are those key with boolean value
e.g. student_signup_open, winners_selection_locked, competition_closed

[jayvdb]

Why not just a link to this GCI website timeline.

I think we should add a countdown or maybe at the moment show percentage of days that have elapsed, which shows new comers that it is still very early and they should still get involved.

[blazeu]

Countdown to "Deadline to claim new tasks" looks good.

[9r0x]

I am thinking about something like this:

Participants can see the inner dates as a countdown to "Deadline to claim new tasks". while outside circle shows newcomers that it is still very early.

[blazeu]

@Grox-Ni I think it's better if the circle and the dates are related ..