fixes encumbrance_covered muts being covered by integrated armor

[Vaskritaya]

Summary

Bugfixes "Integrated armors no longer cause encumbrance from some mutations"

Purpose of change

Currently, integrated armors still count as standard clothing for the purposes of mutations which become encumbering when covered tightly, such as photophore or webbed hands. Fixes #63161 . This PR is an alternative to #63171 , which solves this same problem in an alternative way. I personally think changing the check itself is a safer bet than adding a new flag to mutations, but the ultimate decision is up to the devs.

Steps to reproduce the bug are in the linked report.

Describe the solution

The check to ensure that only oversized clothing was worn on relevant bodyparts was replaced with the new "wearing_fitting_on" method from #59092 , which not only ignores oversized clothes, but also integrated armors.

Describe alternatives you've considered

I considered not doing this (and, facing compiler errors, giving up) and just letting the other PR's solution handle it.

Testing

1. debug mutated epicuticle and reflex photophore
2. confirmed that, when hatless, head encumbrance was 1 (from epicuticle).
3. wore a bike helmet, gained appropriate encumbrance for both the helmet and the photophore coverage
4. wore an oversized helmet, gained appropriate encumbrance (no +5 from photophore this time)
5. also checked with webbed hands and sparse scales.

Additional context

I would not consider myself a programmer, certainly not for anything as annoying to work with as cpp. I'm also not a very good cdda player. I would highly recommend that this PR is tested by people very familiar with both the game and the language to ensure I didn't horribly break anything, since I only got this far by trial and error.

[bombasticSlacks]

I'm making a note to review this in the coming weekend. I think unit tests will need to be added to make sure :)

[Vaskritaya]

I'm making a note to review this in the coming weekend. I think unit tests will need to be added to make sure :)

Do you mean I should make a test to ensure mutations provide correct encumbrance values?

[bombasticSlacks]

No I'll try and write some while testing and then it'll stay fixed 😃

[bombasticSlacks]

Didn't realize how small this is, I don't think this will need a test it should just work as is 😄