Grandfather Clock Widget

[yogsoy]

( Available at: https://yogsoy.github.io/BangleApps/?id=grandfather-clock )

A widget that uses vibrations to count fractions of the hour and the hour of the day, much like an old grandfather clock.

I did try to work on this as a set of options for Chimer, but found that it was easier and more efficient to make a separate widget. Keeps both apps lighter for people that need them - there's quite a bit of logic that went into the counting function.

Goals:

• Recreate(?) the Taptic Time accessibility feature from devices such as the Apple Watch, reminiscent of the chimes of old clocks.

Current considerations:

• Is the name descriptive enough? Happy to hear any other options.
• App setting configuration isn't there yet. It's in the todo for v0.02 (arbitrary). I've fiddled a lot and I think the default configuration will be familiar for most people that would be interested.
• I'd like a proper icon for both the app loader and on-screen widget. The one included in this PR is just an icon from material.io. (I am not very good at images)
• On-screen icon is to be made optional, I just found it useful to double-check the widget was running and to remind me why my wrist was vibrating. I'd like to make a tap on the widget buzz out the whole time.