feat(matInput): Implement possibility of 24-hour time format

[leonardokrleza]

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Feature Description

Currently it is possible to use matInput with type="time" but unfortunately it is only available in 12-hour format (AM/PM). Most people then resort to ngx-material-timepicker but it can get problematic, especially inside forms (mat-form-field, etc.). I think that it would be a great additional feature (and simple, at first glance) that would circumvent using two libs for single form.

Use Case

Current time capability: <input matInput type="time">

Suggested capability: <input matInput type="time" timeFormat="24">