Implement views, routes and worker for `RoninVulns`

[AI-Mozi]

34 #35 #36

[AI-Mozi]

I definitely want to add Advanced Options in this PR. When my PR is a draft, its not fully completed yet 😄

[postmodern]

I created some issues that will allow importing Ronin::Vulns::WebVuln objects into the database:

• https://github.com/ronin-rb/ronin-db-activerecord/issues/98
• https://github.com/ronin-rb/ronin-vulns/issues/56
• https://github.com/ronin-rb/ronin-vulns/issues/57

[postmodern]

@AI-Mozi OK, this should be unblocked now. I added a Ronin::Vulns::Importer module to ronin-vulns 0.2.0 branch.