Skeleton for nv24 to support development and testing

[rjan90]

Write the skeleton for nv24, now that the development, testing, and deployment of network version 23 (nv23) nears completion, with the Filecoin Mainnet scheduled to upgrade to nv23 on August 6, 2024, at 12:00 UTC.

This is part of a series of tickets across multiple repos, as building up a network upgrade skeleton requires changes across:

• ref-fvm (this ticket)
• Skeleton for nv24 to support development and testing filecoin-ffi#478
• Skeleton for nv24 to support development and testing go-state-types#295
• Skeleton for nv24 to support development and testing lotus#12351

How to create a network skeleton in Ref-FVM is documented here: https://github.com/filecoin-project/lotus/blob/master/documentation/misc/Building_a_network_skeleton.md#ref-fvm-checklist

Done Criteria

• There are FVM-crates published that supports network version 24 behind a feature flag.

User/Customer

Implementers