Issue #951

add realization new methods
https://github.com/TheWeatherCompany/grid-api/pull/967
Hey @mgulimonov can we add logic here to look at return value?  AWS states: "return - Returns true if the request succeeds. Otherwise, returns an error." seen here: http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-CreateTags.html