feat: add default gamesystem

game/init.lua

@@ -0,0 +1,9 @@
+local GameSystem = require "gamecore.modules.gamesystem"
+local Game = GameSystem:extend()
+
+function Game:new()
+  Game.super.new(self)
+  self.currentSlot = 1
+end
+
+return Game

main.lua

@@ -21,11 +21,14 @@
   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ]]
 
-Core    = require "gamecore"
-examples = require "examples"
+Core      = require "gamecore"
+Game      = require "game"
+examples  = require "examples"
 
 function love.load()
   core = Core()
+  game = Game()
+  game:read(1)
 
   examples.MainMenu()
 end