Merge branch 'italian' into 'master'

Italian translation

See merge request VanessaE/basic_materials!7

Merge branch 'groups' into 'master'

Groups

See merge request VanessaE/basic_materials!5

add minimum minetest version key for contentdb

Merge branch 'fr-translation' into 'master'

Add french translation

See merge request VanessaE/basic_materials!2

fix motor recipe

add replacements for copper wire

yield was TOO low on oil

fix goldwire typo

add alias for technic:motor

change recipe for brass ingot

make moreores optional

(without it, you can't craft silver wire or brass items)