Create vision statement for Hub

[mtorres253]

So that we can be more formal about the way we work (have a vision that is attached to some solid success measures) we should formalize the vision of the Hub in a vision statement.

Acceptance Criteria: There is a vision articulated in the wiki now, so let's start there, and look here, and come up with a draft that everyone can review: https://docs.google.com/document/d/1KFTY4AFCGH6LLj6Og8YlncZlRKDbcjRRMjlg0hXTo08/edit#heading=h.wlz61t8y5ud4

Some Vignettes to illustrate the vision
https://docs.google.com/document/d/1qQrvz6KXFJu9xm3_yA3FPIseRRvqEoVf3K-fQpbd3Vs/edit#