[MIRROR] Refactors mil_rank sort_order

[SierraHelper]

Оригинальный PR: Baystation12#34822

🆑 JuneauQT
tweak: Refactors ranking orders of Fleet and Expeditionary Corps ranks to the newer standard
bugfix: The 'Admiral' and 'Commandant of the Expeditionary Corps' ranks of the Expedtionary Corps now function correctly.
tweak; Refactors ranking orders of SCGA and ICCGN to match the integration of Fleet and Corps into the standard.
/:cl:

Updates the Fleet and Corps ranks to the standard used by the ICCGN and SCGA. Also alters the ICCGN and SCGA ranks to the slightly modified standard now used by the fleet and corps.

The new sort_order for ranks is as follows:

• Every Pay Grade's sort_order is a multiple of 10.
• Sub-ranks (I.E. Master Chief variations) now increment the sort_order by 1. To the best of my knowledge this is roughly analagous to why we use the seperation-by-10 system in the first place.
• Officer ranks are now higher than Enlisted ranks by 100, similarly to how they were originally higher by 10.
• The 'Officer' access check now checks for a sort_order higher than 100. This should not create issues unless an E-10 rank is added.
• /datum/mil_rank/grade now divides the rank's sort_order by 10 (after subtracting 100 for sort_orders that fall into the officer band.)
• The torch uniform datums have been updated to ensure the vendor functions correctly.
• The corps admiral rank has been more properly added (it was missing from rank_types)
• The corps commandant rank has been implemented to begin with, since we had the (unused) item and sprite. Its paygrade has been corrected on the rank tab item and its sprite name.

I've confirmed that, at the very least, O-Mess and the Uniform Vendors still function appropriately. If anything ever makes the paygrade variable publicly visible again sub-ranks will render with decimal values, but this is probably fine.