Dependency inversion in payload_generator library

[busterb]

Following up from #9851, it seems that requiring msf/core/payload_generator should not be required in the middle of lib/msf/util/exe in order to get the required constants, but @jmartin-r7 's comment indicates there is a dependency inversion that is causing it. This ticket is for addressing the core issue.

See #9851 (comment)

[github-actions]

Hi!

This issue has been left open with no activity for a while now.

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[adfoster-r7]

@jmartin-r7 Looks like this issue has been around for a while, is this something we want to attic ? 👀

[jmartin-tech]

Looking at the class I still see some scoping concerns, the require that hightlighted the issue has been hidden away by zeitwerk.

I believe there is still work we should do here.