PTL Income Adjustment

[Azrun]

[bug][balance][input wanted]

About the PR

Adjusted Credit scaling:

• https://www.desmos.com/calculator/sgpk5aj6hy
• Lower MW values are scaled to provide a behavior that feels more like diminishing returns a function that is intended to scaling infinitely. Result is "similar" to if output to be +600MW.

Keep track of power not sold, and add it to the next attempt, until it can eventually be distributed to station/crew.

Why's this needed?

Give reason to chamber burns when not attempting to "Hellburn".
Give reason to turn on PTL with Char burns.
Resolves bug when outputting in "bursts". 😱

Changelog

(u)Azrun
(+)Nanotrasen no longer pockets money from rounding down when paying out for PTL.  Lower end MW drastically improved.

[github-actions]

Created discussion thread: https://forum.ss13.co/showthread.php?tid=15976

[github-actions]

This PR has been inactive for two weeks, and has been automatically marked as stale. This means it is at risk of being auto closed in another week. Please address any outstanding review items and ensure your PR is finished. If you are auto-staled anyway, ask developers if your PR will be merged. Once you have done any of the previous actions then you should request a developer remove the stale label on your PR, to reset the stale timer. If you feel no developer will respond in that time, you may wish to close this PR youself, while you seek developer comment, as you will then be able to reopen the PR yourself.