Increased reload times for pneumatic weapons

[kevingranade]

Summary

SUMMARY: Balance "Nerf pneumatic gun reload times."

Purpose of change

The Pneumatic weapons have been identified as being overpowered for a long time now. This change roughly aligns the mechanical work required to charge their pressure tanks with comparable IRL guns.

Describe the solution

Roughly doubles reload times to a minute per shot.

Describe alternatives you've considered

Increasing noise production and adjusting the descriptions to match is an option, but I don't think that's a meaningful fix for the issue.
Requiring a bicycle pump to achieve the current reload rate and doubling the reload rate (again) for reloading without an external pump. This is a much more extensive change so I don't want to tackle it right now.

Additional context

Discussion https://discourse.cataclysmdda.org/t/balance-pneumatic-weapons/14488?u=kevin.granade

[kevingranade]

This pull request has been mentioned on Cataclysm: Dark Days Ahead. There might be relevant details there:

https://discourse.cataclysmdda.org/t/balance-pneumatic-weapons/14488/82