Some Buffs to the spawner and Primitive Alloy Smelter

[ferriarnus]

Description

It seems the nerfs to the spawner were a bit too much. After rechecking vanilla a bit, it seems by default 4 mobs could spawn, so this is now also possible for the Powered Spawner. On top of that the energy needed has also been decreased a bit, putting hostile mobs closer to passive mobs, and making passive mobs spawn at an average vanilla speed.

Secondly, the Primitive Alloy Smelter felt a bit too slow, so it also gets a boost.

Closes #(issue)

Todo

• Make sure we're happy with the new energy numbers of the spawner, even with better capacitors.

Checklist:

• My code follows the style guidelines of this project (.editorconfig, most IDEs will use this for you).
• I have performed a self-review of my own code.
• I have commented my code in areas it may be challenging to understand.
• I have made corresponding changes to the documentation.
• My changes are ready for review from a contributor.

[Rover656]

Looks good to me, thanks!