DigitEntry: Increase the width of multi-character columns

e.g. the HOUR column or the UNIT column
DigitEntry: Recalculate layout in CreateTime() after column types are set
DigitEntry: Adjust scaling on touchscreen devices

Use the Layout::GetMaximumControlHeight() value for minimum control sizes.
DigitEntry: Added DIGIT36 column type for angle input
DigitEntry: Use large font size for the values

The value is the thing that matters most in this dialog and should be
emphasized against the other controls.
DigitEntry: Made padding depend on font size