Added time input calculator

[NamelessJu]

Currently the AH duration input uses the regular input calculator, which shows errors on valid time inputs such as "2d".
This time calculator fixes this by displaying the entered amount of time instead:

(Correctly uses the time unit selected in the AH menu by default, so either hours or minutes)

It also allows for inputting multiple time units along with comma values:

Also converts whatever is entered into a cleaner format:

(I did a quick test and the auction house actually allows and correctly uses values like this, even though it only shows the highest unit entered in the auction creation screen)

+ I added config values for this new calculator:

• enabled (default: true)
• close sign on enter (default: true)

I also added a German translation for this, but I am not sure how exactly how you handle translations so I made it a separate commit to disconnect it from the core feature implementation

[NamelessJu]

My bad, I only now found out about the checkstyle gradle tasks. Should be fine now (hopefully)

[NamelessJu]

And we try again (sorry), I ran a full successful build on my end now (don't know why I didn't do this earlier)