add application interface

Author: ashleymichal

app.rb

@@ -0,0 +1,18 @@
+require 'sinatra'
+
+# start a new game
+get '/new_game' do
+  game = Game.new  # returns the game_id
+end
+
+#join game
+get '/join/:game_id' do
+  game = # find game by :game_id
+  game.add_player # todo
+end
+
+# make a move
+get '/play/:game_id/:move' do
+  game = # find game by :game_id
+  game.board.insert_into_column(:move)
+end