fix aluminum chicken + german translations

[bogger33]

This adds the aluminum chicken to the base metals, so other mods can take advantage of it. It also changes the id from aluminunChicken to aluminumChicken.

Additionally, because aluminum is spelled aluminium in some countries, and different mods seem to use different spellings, I added support for both spellings.

I also added german translations for the tooltips.

[bogger33]

oh yeah and i fixed a slight typo in the english tooltips