Better plugin support

[Deytron]

From #23

Planning on providing better support for Lacro59's plugins with more detailed informations and a nicer look, starting with HowLongToBeat

[shakeyourbunny]

Could you also add some integration for https://playnite.link/forum/thread-514.html (it's a new plugin, showcasing screenshots).

Some form of screenshot strip (configurable in height?)