Updated fabric composition of army clothing to match ACU/ECWS spec

[Ilurker]

Summary

Balance "Update of army outerwear to match currently used fabric compositions"

Purpose of change

The current army clothing makes extensive use of plastic and cotton blends, in such a way that implies heavy use of rigid plastics. This has created some bugs, such as incorrectly inheriting the rigid quality, as well as generally departing from realism. This PR aims to bring the current composition of the outerwear items in line with current ACU/ECWS specifications.

Describe the solution

Updated fabric compositions in line with the specs associated with each item's NSN. Added the waterproof tag to the army winter pants to both bring it in line with the winter jacket, and to reflect that the ECWS uses a waterproof, three layer gore-tex specification.

Describe alternatives you've considered

Overriding incorrect rigidity inheritance by utilizing the "SOFT" and "ALLOWS_TAIL" flags.

Testing

Spawned all items and verified they had correct fabric compositions and expected inherited qualities.

Additional context

Data pulled wherever possible from publicly available military specifications:

NSN 8415-01-577-1146
NSN 8415-01-526-9168
NSN 8415-01-548-7209

MIL-DTL-32185
MIL-DTL-32184
MIL-DTL-44436

Specs as actually readable without opening 45 standards documents to decipher them can be gleaned from the following sources:

https://www.army.mil/article/66527/fight_the_freeze

https://store.armyproperty.com/products/trousers-ecwcs-gen-ii-medium-regular-nsn-8415-01-526-9062.html
https://store.armyproperty.com/products/parka-ecwcs-gen-ii-x-small-x-short-nsn-8415-01-526-9168.html
https://store.armyproperty.com/products/army-combat-shirt-rfi.html
https://sites.google.com/site/unitedstatesmilitarycollection/army-combat-uniform-acu
https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=107457

Essentially, standard ACU uses a composition of 50% cotton, 50% rip-stop (which is, in turn, 50% cotton and 50% nylon), yielding a 25/75 cotton-synthetic split. The ECWS cold weather items use a three-layer system of nylon, gore-tex, and nylon again, without natural materials. These items are explicitly waterproof in nature and have high breathability.

While researching this, I discovered that there are commonly available flame-resistant variations of all items, utilizing para-aramid weave. It might be appropriate to add nomex-containing variants of army clothing in a seperate PR.

[bombasticSlacks]

Looks good to me