Add --contract-package-hash argument in casper-client put-transaction package

[devendran-m]

Add --contract-package-hash argument in casper-client put-transaction as an either-or option with --package-address

The requirement is based on the question raised by @davidatwhiletrue ;

@jakub
should casper-client accept a hash-prefixed key instead of a package-prefixed key in this command:

casper-client put-transaction package -v -k /home/casper/casper-nctl/assets/net-1/users/user-1/secret_key.pem \
    -n http://127.0.0.1:11101/rpc \
    --package-address package-fbb6e10a01cd7e11050922406bd2570dac3a902a95164b1cda6ed778139c4e93 \
    --session-entry-point unstake \
    --pricing-mode classic \
    --standard-payment true \
    --chain-name casper-net-1 \
    -p 5000000000 \
    -g 1

or maybe having a --contract-package-hash arg ?