Mining fixes continued

Fixed plasma and sand spawn counts.
Abandoned Crates

A finalized version of the crate overhaul. Altered mechanics, new loot.
Minor suit refit, custom items

Moving around verbs and other shenanigans.
Added custom items.
Chemsprayer rework

Project started, requires finishing.
NSS Aurora

We are Aurora, not some bloody Exodus!
Custom items

Modified Fabian's coat, added Eliza's pen.
Parapen rework

Reworked chemicals (feedback needed) and a new mechanic!