EuiStep add status prop

[nreese]

I am trying to implement status checks for Kibana Add data tutorials.

Before status has been completed, I would like the step label to be an empty circle with no step number.

Once status has been successfully completed I would like the step label to be a filled in blue circle with a check mark.

I talked to @snide about this and he recommended adding a status prop. When set to incomplete, the step would be marked with an empty circle. When set to complete, the step would be marked with a filled in circle with a check. The status prop would be set on the objects contained in the steps prop array.

[snide]

I can add this for you @nreese. I'll try to work it in today.