Vividcortex script

This script adds support for VividCortex tools.

 Examples:
`hubot share top-queries last month`
`hubot share top-processes last 10 minutes`
`hubot share query-compare last 20 days`

Keep in mind that the commands listed here, are shown during `hubot help`, so it's important they have enough context about what they are for someone to find. In addition, they should mention vividcortex, because right now if you did `/help vividcortex`, it wouldn't match anything.