Add live feed

Added live streaming section. Includes:
-adding a new Game model, associating that with tournament model. 
-Also added admin page for Game. 
-Add live stream to ui with chat, only shows up when one is available
-remove 'more' button from header and add 5th game image
If we move the channel_name to the api.Game, we would not have to have the migration for Tournaments - it is clearly not up-to-date with migrations since this includes fields that you did not add.