Allow time inputs to be filled with time strings

[Draiken]

Allows us to use time strings like 10:00 as values for a time input.

I've spent a lot of time thinking I had a bug because a simple fill_in "time_field", with: "10:00" didn't work. It seems to expect a time object only but that's not mentioned anywhere AFAIK.

This adds the ability to set times as strings which would work normally in JS element.value = "10:00"

[albiere]

Just yesterday I moved from selenium to cuprite and I got some failed tests because of this. Had no idea a Time object was needed for the fill_in method. 👍 for this PR.

[Draiken]

@albiere after creating the PR and having previously searched for this in the issues, I noticed there are other PRs doing similar changes. All from long ago, with little/no feedback. The GH actions fail with an unrelated issue.

I'm afraid this project is not active anymore or maybe the maintainers are on vacation.

All this to say that we shouldn't expect this to be merged any time soon.