Add Pokemon lookup function

[theastrogoth]

A way to search for a Pokemon with access to an ability and/or moves (similar to the Discord bot's search function) would be helpful.

For this, it would probably be a good idea to download all of the pokemon data we're using along with the app bundle, rather than fetching it as needed.

[Ericzklm]

I think implementing something like Showdown's teambuilder search system would be good. The only gripe I have with it is that you can only do "and"s and not "or"s