Testnet participation howto is missing staking setup and monitoring of validator voting

[aeyakovenko]

Problem

Testnet participation howto is missing staking setup and monitoring of validator voting.

Proposed Solution

Fix it.

https://github.com/solana-labs/solana/blob/master/book/src/testnet-participation.md

• [x] Instructions on how to airdop from a drone to the validators stake account (fullnode-x.sh does this)
• [x] Graphana counters for voting #3485
• [x] where to find the graphana board for the validator
• [x] Wallet rpc call to display staking account state

tag: @rob-solana @mvines

[mvines]

Bump to v0.14, although until #3798 is fixed the remaining work here is something of a moot point

[mvines]

done