[MDB IGNORE] [IDB IGNORE] Condensing clothing state modifiers into a decl system.

[MistakeNot4892]

Description of changes

• All the various clothing states (open, buttons, sleeves, tucked in, hood, etc) have been unified in a decl system.
• Accessory hiding vars have been rolled into a check against the state decls.
• Clothing icon validation has been expanded to check for onmob states based on clothing state modifiers.

Depends on #3805 #3806

Why and what will this PR improve

Consistent clothing behavior, shorter typetree, more flexible clothing code.

TODO

• Coarse implementation/conversion.
• Get suits and accessories passing CI.
• Work out why verbs aren't being removed on accessory removal.
• Verify icon updating and clothes icon updating is working on toggle.
• See what happens to unit test time if we test states for all clothing.
• Get all the other clothing passing CI.

Authorship

Myself.

Changelog

Nothing player-facing hopefully.

[MistakeNot4892]

Somehow testing every single clothing subtype for icon states didn't appreciably impact testing time. Perplexing.