[aptos-cli] validated end-to-end flow
[aptos-cli] validated end-to-end flow

* migrate vote and proposal to use generated entry point API code
* tweaked the execute proposal to be as simple as needed to be functional

aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core