Feature request: Add verify command in generated bindings

[karacurt]

Problem: developers often need to verify the contracts on the chain after using the deploy command in a binding contract.
Solution: I propose implementing a verify command that could verify the contract and a --verify flag that could be used with a deploy command to deploy and verify in the same CLI call.

Example of what would be a verify command:

ERC20 verify --api-url api.rpc.com --api-key $API_KEY --contract TOKEN_ADDRESS --name Token --symbol Symbol --decimals 18

Example of what would be a --verify flag:

ERC20 deploy --rpc rpc.com --keyfile ~/.secrets/keyfile.json --name Token --symbol Symbol --decimals 18 --verify --api-url api.rpc.com --api-key $API_KEY