Feature Request: search database

[bla0r]

If we're searching for a title, we will get more results as we want.

In that case we should create a search database (saved in CSV, JSON or similar) to reduce search request. Maybe we get the dataset from imdb to get all titles.

Like:
ImdbId;Title;Year;Type

The search method needs to be changed too:

1. Own database lookup
2. search Advanced
3. original search

[FabianBeiner]

See also #197.