Teams can select or deselect pending actions for a round

[ShaydeNofziger]

Fixes #75

Description

This PR adds select_action and deselect_action event listeners to Team sockets. Additionally, an emitter has been created which emits the selected_actions_update event to all sockets in the game_[ID] room.

Includes the following changes/additions:

• select_action and deselect_action event listeners attached to authenticated Team sockets.
• selected_actions_update event emitted to game room when actions update.

Example Client Emit/Reponse

• Client (team 1): socket.emit('select_action', 1)
• Server emits to game_[ID] room, where ID is the ID of the Team's game.

  {
  "1": [1],
  "[TEAM ID]": [ACTION_ID, ACTION_ID, ...],
  ...
  }

• Client (team 1): socket.emit('deselect_action', 1)
• Server emits to game_[ID] room, where ID is the ID of the Team's game.

  {
  "1": [],
  "[TEAM ID]": [ACTION_ID, ACTION_ID, ...],
  ...
  }

Known Issues

• pending actions don't reset when incrementing round

Code coverage for Socket Team Controller

Before	After
42.11%	82.93%