add admin users controller rspec code
add admin users controller rspec code

cheunghy/ogx-io-web,ogx-io/ogx-io-web,ogx-io/ogx-io-web,cuterxy/ogx-io-web,cuterxy/ogx-io-web,cuterxy/ogx-io-web,ogx-io/ogx-io-web,cheunghy/ogx-io-web,cheunghy/ogx-io-web