pass filenames to --models

[drewbanin]

dbt should accept filenames as --models or --exclude parameters, eg:

$ dbt run --models models/snowplow/*
# or
$ dbt run --models models/snowplow/events.sql

[drewbanin]

In addition to the existing dot syntax it would be great if dbt supported paths as args to --models. This would let us glob filepaths, for instance

[mturzanska]

I could tackle this one if no one is working on it already.

[drewbanin]

@mturzanska I got started on this a couple of weekends ago. It ended up being pretty tricky, but would love to collaborate! I will push the code up and tag you in the PR. Otherwise, I think this could be a pretty good issue: #557

[mturzanska]

Cool, I would love to collaborate on this one.
In the meantime I will look into #557