Network: Grant XP to pokemon

[magroader]

As the DM, I can choose to grant XP to a set of Pokemon owned by members of my group via the app. Previously, I would have to tell my players what XP to grant, and they would have to type it in. With this feature, I can choose to grant XP easily.

NOTE: This feature would work much better alongside extra DM features, but just getting the framework in place would be helpful.