[FEATURE] Scanner ignore rules

[aaronleopold]

Is your feature request related to a problem? Please describe.

This supersedes #53

I don't feel that managing opt-in ignore rules via .stumpignore files is the best route to take. One so people don't have a slightly tedious chore if they decide to uninstall Stump, but mostly it just isn't a great management flow IMO.

Describe the solution you'd like

Support dumping a set of ignore rules to the DB instead, this can be populated via the UI

Additional context

I am unsure if series should have their own ignore rules, and regardless of whether they do if they should inherit the rules from the library. I think, in general, the 'rules' of these rule-sets needs to be thought through and defined a bit.