* Use singleGossip for program deployment
* Cli: default to single gossip (#14673)
* Init cli RpcClient with chosen commitment; default to single_gossip
* Fill in missing client methods
* Cli tests: make RpcClient commitment specific
* Simply rpc_client calls, using configured commitment
* Check validator vote account with single-gossip commitment
(cherry picked from commit 4964b0fe61)
Co-authored-by: Michael Vines <mvines@gmail.com>
Co-authored-by: Tyera Eulberg <teulberg@gmail.com>
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