`ipsw class-dump` pull structs out into Type.h file

[blacktop]

          > I plan to take a better look at these struct types in the future, as they cause compilation errors. For now, I'm keeping the old behaviour and not parsing these types. So if you have an Objective-C type that is only present inside a struct type, it won't be imported. You may also face some type redefinition errors, but that's nothing new.

That would be great! It was my TODO to try and move these custom struct definitions to another .h header for Types etc

This would also clean the output up a lot and have 1 place where a user could "fix" or "properly label fields" for all uses of said structs etc

Originally posted by @blacktop in https://github.com/blacktop/ipsw/issues/443#issuecomment-2064640101