Add "spinner" to watch task when compiling, or recompiling

[jwoertink]

Related: #1067
Related: luckyframework/lucky_cli#481

When we start compiling tasks, we show a "spinner" in the console. It's neat, and adds a little flare while you're sitting there waiting.

Right now when we run the lucky watch task, between compiles, you'll either see "Compiling..." or "Recompiling..." but no spinner. Having the spinner would allow it to stand out a little more within the mess that is the Process manager output..

[skojin]

Since spinner not working with overmind (#1067),
I suggest add newline before "Compiling..."
And make "Done" in "Done compiling" colored like in #1067 (comment)

[jwoertink]

oh, the next release of Lucky won't use Overmind anymore (unless you specifically want it to). luckyframework/lucky_cli#710 I don't mind the suggestion as an interim, but since we already use the spinner when building tasks and such, I'd love to keep the consistency. I'd like to try it out with Nox and see if it works first. If not, then we will definitely fallback to your suggestion 👍

[skojin]

Nox not work with spinner too.

e.g. with default Procfile that have lucky db.migrate

nox start Compiling... appear at end

release | Starting with pid of 2495
release | Did not migrate anything because there are no pending migrations.
Compiling... ⢿

release | Done

[jwoertink]

Ah... well that's a bummer 😂 Thanks so much for giving it a shot! In that case, I think #1067 (comment) is the next best solution. It'll bring a bit more attention to what's going on when there's a lot of other activity.