[IDB IGNORE] cyborg refactor: icons, chassis, modules base

[silicons]

• separates the composition of cyborgs into modules, iconsets, chassis, upgrades
• modules / chassis atm can provide items, so can upgrades; in the future we will want to probably generalize the item API a bit so components can work
• chassis now can (unimplemented) easily be made to give different stats
• reorganizes all the cyborg sprites
• adds generalized item mounts with redirection support and tears out legacy cyborg items
• entirely rebalances modules & writes some new lawsets in for future use

[github-actions]

This pull request conflicts with the merge target.