[Fix] try_state in BagsList needs to be feature-gated and the signature has to adhere to that in Hooks.

[ruseinov]

The current BagsList implementation does not feature-gate try_state and nor does it have an argument for block number.

As a consequence a bunch of other pallets/tests are calling a variety of try_state methods outside of try-runtime context. What this means is we need to feature gate all the instances of try_state related to BagsList pallet and make sure we have a decent substitute to call within tests/benchmarks, similar to do_try_state in staking pallet.

[kianenigma]

Please chose the right "domain" part in the project as well :)

[ruseinov]

Please chose the right "domain" part in the project as well :)

Yep, the github UI was hiding this under a grey link + 1 more so I was always missing it. Lesson learned :)