Investigate(wazero): Investigate how to handle offchain functions

[jimjbrettj]

Issue summary

• Offchain workers are optional API that does not change the state of the chain. Some of these functions are not implemented correctly by us, and some are not at implemented at all.
• Since the protocol is optional, for the cases where we do not want to run it we need to verify that we are still following the intended behavior (i.e. return 0, return nothing, whatever we are supposed to do)
• For functions we are implementing, we need to verify that our current code is correct and if it is not create new issues to implement it correctly

This issue can be considered done when:

• [ ] Every offchain function that is not implemented has been verified to work as expected
• [ ] Every offchain function that is implemented has been verifies to work correctly and the same way as substrate. If a function/functions are found to be incorrect, either the issue needs to be marked as not implemented and incorrect behavior removed (and make sure that the unimplemented behavior is correct) or a new issue should be created to fix the incorrect function.

Other information and links

• https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/reference_docs/frame_offchain_workers/index.html

[jimjbrettj]

After discussing with the team, this issue should make it so we clearly do not support offchain workers (for example, substrate can disable this via cli so maybe we do something similar) and that the way in which we handle the function calls without supporting the protocol is correct (i.e. do we need to return anything, do we remove, etc).

Then a future issue can be created to support offchain workers