Add Engineer Turret & Scavenger body presets to IDD editor?

[swuff-star]

Simple change, hopefully - maybe update "Add Survivor IDRS" functionality to also include the bodies listed in the title, as they generally receives IDRS for all items in Vanilla as well? Current bodies added by the button while within the SS2 project are shown in the screenshot.

[Zenithrium]

i don't know if this would be more work but could it additionally be setup by default for different idrs placements for both of engi's turrets? i know from placing items for vv some of the spots don't always perfectly work for both. i think we do already have a system for skin-specific idrs and i dont know if this would count but it would be a very nice bonus