Migrate Firebase communication to client-side GraphQL

[jsonnull]

This has turned out to be a sizeable changeset.

Here follows todos I'm tracking. More will be added as I become aware of them

Server

Types and Queries

• User
  • User/Preferences
  • currentUser
• Game
  • Game/MessageConnection
• Message

Mutations

• preferences/setChatPinned
• preferences/setTheme
• game/createGame
• game/updateGameInfo
• message/sendMessage

Subscriptions

• message/messageAdded

Client

Queries

• getCurrentUserGames
• getCurrentUserPreferences
• getCurrentUserFriends
• getUserProfile

Fragments

• game/gameInfo
• user/preferences/preferencesData
• user/friends/friendsData
• user/profile/profileData
• message/messageData

Mutations

• preferences/setChatPinned
• preferences/setTheme
• game/createGame
• game/updateGameInfo
• message/sendMessage

Subscriptions

• message/messageAdded

Testing

• Use link-schema to create response data, use in integration tests?

Followup

• Remove old packages
  • redux-saga
  • still need reselect?
• Remove old code
  • sagas/
  • firebase/
  • selectors/ ?
• Create issue to remove Firebase packages
• Secure messages, currently does not check game membership
• Ensure subscriptions are canceled properly on the backend

[coveralls]

Coverage decreased (-15.0%) to 71.154% when pulling 6d9c839 on feature/graphql into 0706444 on master.

[jsonnull]

All proper follow-up issues have been created, we're done here!