fix(status): print verbose messages

[darkowlzz]

What does this do / why do we need it?

Adds verbose messages to status. This is required to provide some feedback when the operation takes too long.

$ dep status -v
Checking upstream projects:
github.com/Masterminds/semver
github.com/Masterminds/vcs
github.com/armon/go-radix
github.com/go-yaml/yaml
github.com/nightlyone/lockfile
github.com/pelletier/go-buffruneio
github.com/pelletier/go-toml
github.com/pkg/errors
github.com/sdboyer/constext
...

What should your reviewer look out for in this PR?

Verbose message. Maybe better wording?

Do you need help or clarification on anything?

Anything else that we can log here?

Which issue(s) does this PR fix?

Related to #1008

[jmank88]

Can this either be combined with the preceding if ctx.Verbose block into an if/else, or can it be moved down closer to it's usage or in a narrower scope?

[darkowlzz]

oh! yeah, this can be in else part of the preceding Verbose reference. Thanks :)