Cleanup for the `StateDecodeParams` implementation

[akaladarshi]

Summary

Once the StateDecodeParams API support for all actor mentioned in the #5680 is implemented, we need to cleanup few things:

• Decide a files names for the implementation:

  • actor-name_actor
  • actor-name_methods
  • actor-name_params
  • actor-name_actor_params
  • actor-name_actor_method_params

• Use enum for version instead of u64 to track all the implementation

  Originally posted by @LesnyRumcajs in feat: add support for verified reg actor in state decode params #5896 (comment)

• Refactor the method api_compare_tests state_decode_params tests functions into separate file

  Originally posted by @LesnyRumcajs in feat: add support for verified reg actor in state decode params #5896 (comment)

• Use fil_actor_<actor_name>_state for method number instead of magic numbers

• Update the ChangeLog file for stateDecodeParams API

• Combine remaining individual files of same in lotus_json/actor i.e. account_authenticate_params into a single file

• Add Exec4 in the v10 of the fil-actor-state and update the init actor

• Add support for the v8 to v10 for the fil_actor_account_state

  Note: Earlier it was not added because the files/types were not exposed

[elmattic]

@akaladarshi Let's put this issue Frozen and not Ready.