Fixes Shells are not appropriately handling the presence of powder bags.

[IndusRobot]

About The Pull Request

Fixes a long standing issue where gunpowder is being packed directly into the shell by powder gates, allowing "pre-loading" to occur where it shouldn't via deconstruction. Feeding the shell now modifies its speed directly before it's sent to the weapon turret.

If you're loading and using the deck turret under normal conditions, nothing changes.

Why It's Good For The Game

Fixes https://github.com/BeeStation/NSV13/issues/1385

Testing Photographs and Procedure

Screenshots&Videos

https://github.com/BeeStation/NSV13/assets/22532898/2bdfeac7-16ac-4c9d-9247-1bb935eddd19

Since gunpowder will be held in the payload gate until used, dismantling it will return your gunpowder without modifying the shell

Changelog

:cl: fix: Fixed shells are not appropriately handling the presence of powder bags /:cl: