feat(user-sessions): introduce GameLobby and GameUtil for session management and code generation

knockoutwhistweb/app/model/sessions/SimpleSession.scala

@@ -0,0 +1,14 @@
+package model.sessions
+
+import de.knockoutwhist.player.AbstractPlayer
+import de.knockoutwhist.utils.events.SimpleEvent
+
+import java.util.UUID
+
+case class SimpleSession(id: UUID, player: AbstractPlayer) extends PlayerSession {
+  
+  def name: String = player.name
+  
+  override def updatePlayer(event: SimpleEvent): Unit = {
+  }
+}