Add Analog Clock

### Description

I’ve implemented an Analog Clock widget in Glance as part of my local build and found it quite useful. I’d like to propose contributing this feature to the main repository if you think it could benefit other users as well.

Examples:

A working version of the code can be found here:
👉 https://github.com/anant-j/glance/tree/AddAnalogClock

Sample config:
```
- type: analog-clock
hide-am-pm-indicator: false
hide-date: false
dial-markers: "NumericalFull"
timezones:
- timezone: Europe/Paris
label: Paris
- timezone: America/New_York
label: New York
- timezone: Asia/Tokyo
label: Tokyo
```

Please let me know if there’s interest, and I’d be happy to open a pull request and make any necessary changes to align with project standards.