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`

I'd reconsider having `share` be first. In general, I try to avoid having too generic words as prefixes to commands, like share, show, list, etc.