try_state
* Adds try_state hook to elections pallets * Addresses PR review comments Co-authored-by: Liam Aharon <liam.aharon@hotmail.com> * remove unecessary println * ensures try-runtime does not mutate storage * Addresses PR comments * Fixes snapshot invariant checks; simplifies test infra --------- Co-authored-by: Liam Aharon <liam.aharon@hotmail.com> Co-authored-by: parity-processbot <>