Improves mining equipment prices, rebalances medipens

- Buffed kinetic accelerator projectile range by one tile so it's less shit and a more well rounded item for mining and combat.
- Reduced price of both kinetic accelerator and resonator significantly (both now 650 points) to allow faster acquisition of alternative equipment (especially the resonator)
- Both utility medipens in mining now have a single unit of lexorin to punish those who shotgun 50 of them at once but not to the point where taking one puts you into crit after a goliath has smacked you around too much
- Added value bundle of medipens (5 assorted medipens for the price of 4)
- Lowered the price of the advanced scanner to 300 from 400