Add offline and fee-payer utilities to CLI vote module (#21579) (#21649)
* create-vote-account: add offline, nonce, fee_payer capabilities
* vote-authorize: add offline, nonce, fee-payer
* vote-update-things: add offline, nonce, fee-payer
* withdraw-vote: add offline, nonce, fee-payer
* close-vote-acct: add fee-payer
* Allow WithdrawVoteAccount to empty account, since offline operations cannot perform account state queries as in CloseVoteAccount
* Fix lint
* Update offline-signing docs
* Add some parse unit tests
* Add offline integration test
(cherry picked from commit 873fe81bc048599b540cf511872380d77be38f56)
Co-authored-by: Tyera Eulberg <teulberg@gmail.com>
0e969015fc