Add 24 hour support for time picker component

[TimonLukas]

Is your feature request related to a problem? Please describe.
I want to implement a time picker into an app. The cv-time-picker component seems to only support the 12-hour-format with AM and PM, whereas the application I am developing will mainly be used by Germans and other Europeans, for whom the AM/PM format isn't ideal. This map shows the distribution of the 12-hour-format compared to the 24-hour-format.

Describe the solution you'd like
An additional switch that allows me to disable the AM/PM select.

Describe alternatives you've considered
I can use CSS to hide the select field, but that's obviously not ideal.

Additional context
The Carbon Design system documentation for the time picker states:

The time field format should include the hour and minutes, for example 11:30. It may be localized accommodate the 12-hour or 24-hour format.

as well as

Time pickers provide the user with a text field in which they can input the hour and minutes. Additionally, they can be accompanied by an AM/PM and a time zone control, both styled as selects.

In my eyes this means that implementing the feature as described above should be compliant with the design rules.