Add version CLI option to optimum-cli

[idubinov]

"--version" and "-v" are commonly used options, which helps to simply checks that tool is present and available in current environment. They also shows some info about tool found in current shell, such as path to executable etc

Please add these options to optimum-cli

[IlyasMoutawwakil]

Hi ! Great suggestion ! Don't hesitate to open a PR adding this argument in the CLI !