Verify with signer

[ngundotra]

Adds subcommands under new group remote

$ solana-verify remote
solana-verify-remote 
Send a command to a remote machine

USAGE:
    solana-verify remote [OPTIONS] <SUBCOMMAND>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -u, --url <url>    Optionally include your RPC endpoint. Defaults to Solana CLI config file

SUBCOMMANDS:
    get-job       Get the status of a verification job
    get-status    Get the verification status of a program
    help          Prints this message or the help of the given subcommand(s)
    submit-job    Submit a verification job with with on-chain information

Primary change is that solana-verify remote submit-job --program-id <program-id> --uploader <address> now allows users to submit API verification requests by just submitting a request with a PDA (derived from the program id and whatever keypair wrote the build args to mainnet).