Show slots on platform requests

[DeadMG]

TL;DR

Tell the player if they're requesting more stuff than their platform can fit.

What?

Display how many slots, total, all requests in a group and/or all requests total take up. Display this next to the total number of slots.

Why?

When requesting stuff to a space platform, you can see how many slots certain items take up, but you can't see how many you've used so far. How many more items you can fit is mostly just guesswork. It would be easier to figure out how much you can fit if the game just added up the requests for you.