Multiple PKM Formats

[evandixon]

• [x] Files are downloaded with the appropriate file extension and MIME type
• [x] Display a generation specific view
• [x] Automatically use the most appropriate model (PKHeX.PK6, PKHeX.PK5, etc.)
• [x] Display what kind of Pokemon it is on the page (Generation and Party vs PC)

[evandixon]

Closed with commit 8a9965bbd9a87b2df666aa535c740b99b23ec4b9