86 bufixes modules

[ThomasKnoops]

Description[^1]

• https://github.com/IGLADI/Ethereal-Hyperspace-Battleships/issues/87
• https://github.com/IGLADI/Ethereal-Hyperspace-Battleships/issues/86

Modifications[^2]

• changed how the levels work in modules
• changed how the costs work in modules

[^1]: Description of the pull request. [^2]: Modifications, commands modified and explanation.

[ThomasKnoops]

There got a bug somwhere in here that needs to be fixed first

[LordTlasT]

I fixed capacity and max_capacity not behaving properly. I also tested upgrades of modules.

[IGLADI]

Seems to introduce a new bug on /mine (cargo add resource takes 3 not 4 args)