Update `EntityDisabledSlots` to modern MapTag format (#2335)
* Update `EntityDisabledSlots` to modern MapTag format
* Deprecate `disabled_slots_raw`
* Deprecate `disabled_slots_raw`
* Fix order in `handledMechs`
* Meta fix
* Switch to a better input format
* Fixes from review
* Remove `@deprecated` from `EntityTag.disabled_slots_raw` mech meta
* Oops, revert that
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commit: f0e2c3f)
