[feat] The TimePicker component should support 24 hour time formats

[dakota002]

Is your feature request related to a problem? Please describe.

In some fields, like astronomy, a 24 hour time format is more common/useful. The TimePicker component currently only supports the 12 hour format.

Describe the solution you'd like

An optional property on the component, something like format, with options 12 and 24, defaulting to 12.